Home / 852,092,571.90-1,278,138,857.85-561,854,927.10

Finding the Fourth Proportional to 852,092,571.90, 1,278,138,857.85 and 561,854,927.10

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Solution

The fourth proportional to 852,092,571.90, 1,278,138,857.85 and 561,854,927.10 is: 842,782,390.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,092,571.90 : 1,278,138,857.85 = 561,854,927.10 : x
  2. Step 2: Convert to fraction form
    852,092,571.90/1,278,138,857.85 = 561,854,927.10/x
  3. Step 3: Cross multiply
    852,092,571.90x = 1,278,138,857.85 × 561,854,927.10
  4. Step 4: Simplify right side
    852,092,571.90x = 718,128,614,800,988,928
  5. Step 5: Solve for x
    x = 718,128,614,800,988,928/852,092,571.90
  6. Step 6: Final answer
    x = 842,782,390.65

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Half scale
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Double scale
Find fourth proportional to 852,092,572.90, 1,278,138,859.35 and 561,854,928.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.