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Finding the Fourth Proportional to 574,395.85, 861,593.36 and 258,483.70

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Solution

The fourth proportional to 574,395.85, 861,593.36 and 258,483.70 is: 387,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,395.85 : 861,593.36 = 258,483.70 : x
  2. Step 2: Convert to fraction form
    574,395.85/861,593.36 = 258,483.70/x
  3. Step 3: Cross multiply
    574,395.85x = 861,593.36 × 258,483.70
  4. Step 4: Simplify right side
    574,395.85x = 222,707,838,080.46
  5. Step 5: Solve for x
    x = 222,707,838,080.46/574,395.85
  6. Step 6: Final answer
    x = 387,725.36

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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.