Home / 718,229.89-991,160.24-395,932.91

Finding the Fourth Proportional to 718,229.89, 991,160.24 and 395,932.91

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Solution

The fourth proportional to 718,229.89, 991,160.24 and 395,932.91 is: 546,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,229.89 : 991,160.24 = 395,932.91 : x
  2. Step 2: Convert to fraction form
    718,229.89/991,160.24 = 395,932.91/x
  3. Step 3: Cross multiply
    718,229.89x = 991,160.24 × 395,932.91
  4. Step 4: Simplify right side
    718,229.89x = 392,432,960,082.48
  5. Step 5: Solve for x
    x = 392,432,960,082.48/718,229.89
  6. Step 6: Final answer
    x = 546,389.07

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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.