Home / 638,948.91-881,719.83-366,825.28

Finding the Fourth Proportional to 638,948.91, 881,719.83 and 366,825.28

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Solution

The fourth proportional to 638,948.91, 881,719.83 and 366,825.28 is: 506,201.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,948.91 : 881,719.83 = 366,825.28 : x
  2. Step 2: Convert to fraction form
    638,948.91/881,719.83 = 366,825.28/x
  3. Step 3: Cross multiply
    638,948.91x = 881,719.83 × 366,825.28
  4. Step 4: Simplify right side
    638,948.91x = 323,437,123,521.30
  5. Step 5: Solve for x
    x = 323,437,123,521.30/638,948.91
  6. Step 6: Final answer
    x = 506,201.86

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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.