Home / 1,276,959,593.61-1,762,203,459.69-690,248,729.61

Finding the Fourth Proportional to 1,276,959,593.61, 1,762,203,459.69 and 690,248,729.61

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Solution

The fourth proportional to 1,276,959,593.61, 1,762,203,459.69 and 690,248,729.61 is: 952,542,825.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,959,593.61 : 1,762,203,459.69 = 690,248,729.61 : x
  2. Step 2: Convert to fraction form
    1,276,959,593.61/1,762,203,459.69 = 690,248,729.61/x
  3. Step 3: Cross multiply
    1,276,959,593.61x = 1,762,203,459.69 × 690,248,729.61
  4. Step 4: Simplify right side
    1,276,959,593.61x = 1,216,358,699,365,369,344
  5. Step 5: Solve for x
    x = 1,216,358,699,365,369,344/1,276,959,593.61
  6. Step 6: Final answer
    x = 952,542,825.51

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.