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Finding the Fourth Proportional to 574,396.60, 861,594.49 and 258,484.45

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Solution

The fourth proportional to 574,396.60, 861,594.49 and 258,484.45 is: 387,726.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,396.60 : 861,594.49 = 258,484.45 : x
  2. Step 2: Convert to fraction form
    574,396.60/861,594.49 = 258,484.45/x
  3. Step 3: Cross multiply
    574,396.60x = 861,594.49 × 258,484.45
  4. Step 4: Simplify right side
    574,396.60x = 222,708,775,070.48
  5. Step 5: Solve for x
    x = 222,708,775,070.48/574,396.60
  6. Step 6: Final answer
    x = 387,726.49

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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.