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Finding the Fourth Proportional to 568,329.60, 784,293.28 and 313,679.04

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Solution

The fourth proportional to 568,329.60, 784,293.28 and 313,679.04 is: 432,876.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,329.60 : 784,293.28 = 313,679.04 : x
  2. Step 2: Convert to fraction form
    568,329.60/784,293.28 = 313,679.04/x
  3. Step 3: Cross multiply
    568,329.60x = 784,293.28 × 313,679.04
  4. Step 4: Simplify right side
    568,329.60x = 246,016,363,148.85
  5. Step 5: Solve for x
    x = 246,016,363,148.85/568,329.60
  6. Step 6: Final answer
    x = 432,876.21

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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.