Home / 1,122,151.86-1,683,447.30-412,185.24

Finding the Fourth Proportional to 1,122,151.86, 1,683,447.30 and 412,185.24

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Solution

The fourth proportional to 1,122,151.86, 1,683,447.30 and 412,185.24 is: 618,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,151.86 : 1,683,447.30 = 412,185.24 : x
  2. Step 2: Convert to fraction form
    1,122,151.86/1,683,447.30 = 412,185.24/x
  3. Step 3: Cross multiply
    1,122,151.86x = 1,683,447.30 × 412,185.24
  4. Step 4: Simplify right side
    1,122,151.86x = 693,892,129,377.85
  5. Step 5: Solve for x
    x = 693,892,129,377.85/1,122,151.86
  6. Step 6: Final answer
    x = 618,358.49

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Half scale
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Double scale
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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.