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Finding the Fourth Proportional to 568,341.60, 784,309.92 and 313,691.04

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Solution

The fourth proportional to 568,341.60, 784,309.92 and 313,691.04 is: 432,892.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,341.60 : 784,309.92 = 313,691.04 : x
  2. Step 2: Convert to fraction form
    568,341.60/784,309.92 = 313,691.04/x
  3. Step 3: Cross multiply
    568,341.60x = 784,309.92 × 313,691.04
  4. Step 4: Simplify right side
    568,341.60x = 246,030,994,487.12
  5. Step 5: Solve for x
    x = 246,030,994,487.12/568,341.60
  6. Step 6: Final answer
    x = 432,892.81

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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.