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Finding the Fourth Proportional to 447,711.90, 671,567.85 and 443,046.30

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Solution

The fourth proportional to 447,711.90, 671,567.85 and 443,046.30 is: 664,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,711.90 : 671,567.85 = 443,046.30 : x
  2. Step 2: Convert to fraction form
    447,711.90/671,567.85 = 443,046.30/x
  3. Step 3: Cross multiply
    447,711.90x = 671,567.85 × 443,046.30
  4. Step 4: Simplify right side
    447,711.90x = 297,535,651,141.46
  5. Step 5: Solve for x
    x = 297,535,651,141.46/447,711.90
  6. Step 6: Final answer
    x = 664,569.45

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Similar ratio
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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.