Home / 992,144.28-1,487,254.14-392,906.28

Finding the Fourth Proportional to 992,144.28, 1,487,254.14 and 392,906.28

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Solution

The fourth proportional to 992,144.28, 1,487,254.14 and 392,906.28 is: 588,978.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,144.28 : 1,487,254.14 = 392,906.28 : x
  2. Step 2: Convert to fraction form
    992,144.28/1,487,254.14 = 392,906.28/x
  3. Step 3: Cross multiply
    992,144.28x = 1,487,254.14 × 392,906.28
  4. Step 4: Simplify right side
    992,144.28x = 584,351,491,562.00
  5. Step 5: Solve for x
    x = 584,351,491,562.00/992,144.28
  6. Step 6: Final answer
    x = 588,978.34

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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.