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Finding the Fourth Proportional to 437,609.85, 656,414.78 and 371,999.85

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Solution

The fourth proportional to 437,609.85, 656,414.78 and 371,999.85 is: 557,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,609.85 : 656,414.78 = 371,999.85 : x
  2. Step 2: Convert to fraction form
    437,609.85/656,414.78 = 371,999.85/x
  3. Step 3: Cross multiply
    437,609.85x = 656,414.78 × 371,999.85
  4. Step 4: Simplify right side
    437,609.85x = 244,186,197,837.78
  5. Step 5: Solve for x
    x = 244,186,197,837.78/437,609.85
  6. Step 6: Final answer
    x = 557,999.78

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1.5x scale

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.