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Finding the Fourth Proportional to 624,340.69, 861,590.16 and 337,860.78

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Solution

The fourth proportional to 624,340.69, 861,590.16 and 337,860.78 is: 466,247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,340.69 : 861,590.16 = 337,860.78 : x
  2. Step 2: Convert to fraction form
    624,340.69/861,590.16 = 337,860.78/x
  3. Step 3: Cross multiply
    624,340.69x = 861,590.16 × 337,860.78
  4. Step 4: Simplify right side
    624,340.69x = 291,097,521,808.62
  5. Step 5: Solve for x
    x = 291,097,521,808.62/624,340.69
  6. Step 6: Final answer
    x = 466,247.88

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1.5x scale

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.