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Finding the Fourth Proportional to 924,352.92, 1,386,510.92 and 418,819.68

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Solution

The fourth proportional to 924,352.92, 1,386,510.92 and 418,819.68 is: 628,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    924,352.92 : 1,386,510.92 = 418,819.68 : x
  2. Step 2: Convert to fraction form
    924,352.92/1,386,510.92 = 418,819.68/x
  3. Step 3: Cross multiply
    924,352.92x = 1,386,510.92 × 418,819.68
  4. Step 4: Simplify right side
    924,352.92x = 580,698,059,830.91
  5. Step 5: Solve for x
    x = 580,698,059,830.91/924,352.92
  6. Step 6: Final answer
    x = 628,221.16

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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.