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Finding the Fourth Proportional to 574,444.70, 861,665.67 and 153,720.57

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Solution

The fourth proportional to 574,444.70, 861,665.67 and 153,720.57 is: 230,580.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,444.70 : 861,665.67 = 153,720.57 : x
  2. Step 2: Convert to fraction form
    574,444.70/861,665.67 = 153,720.57/x
  3. Step 3: Cross multiply
    574,444.70x = 861,665.67 × 153,720.57
  4. Step 4: Simplify right side
    574,444.70x = 132,455,737,941.83
  5. Step 5: Solve for x
    x = 132,455,737,941.83/574,444.70
  6. Step 6: Final answer
    x = 230,580.49

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Double scale
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Similar ratio
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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.