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Finding the Fourth Proportional to 391,730.92, 537,068.05 and 384,645.04

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Solution

The fourth proportional to 391,730.92, 537,068.05 and 384,645.04 is: 527,353.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,730.92 : 537,068.05 = 384,645.04 : x
  2. Step 2: Convert to fraction form
    391,730.92/537,068.05 = 384,645.04/x
  3. Step 3: Cross multiply
    391,730.92x = 537,068.05 × 384,645.04
  4. Step 4: Simplify right side
    391,730.92x = 206,580,561,574.97
  5. Step 5: Solve for x
    x = 206,580,561,574.97/391,730.92
  6. Step 6: Final answer
    x = 527,353.22

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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.