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Finding the Fourth Proportional to 391,729.92, 537,066.68 and 384,644.04

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Solution

The fourth proportional to 391,729.92, 537,066.68 and 384,644.04 is: 527,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,729.92 : 537,066.68 = 384,644.04 : x
  2. Step 2: Convert to fraction form
    391,729.92/537,066.68 = 384,644.04/x
  3. Step 3: Cross multiply
    391,729.92x = 537,066.68 × 384,644.04
  4. Step 4: Simplify right side
    391,729.92x = 206,579,497,544.59
  5. Step 5: Solve for x
    x = 206,579,497,544.59/391,729.92
  6. Step 6: Final answer
    x = 527,351.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.