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Finding the Fourth Proportional to 574,416.11, 861,225.16 and 254,393.59

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Solution

The fourth proportional to 574,416.11, 861,225.16 and 254,393.59 is: 381,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,416.11 : 861,225.16 = 254,393.59 : x
  2. Step 2: Convert to fraction form
    574,416.11/861,225.16 = 254,393.59/x
  3. Step 3: Cross multiply
    574,416.11x = 861,225.16 × 254,393.59
  4. Step 4: Simplify right side
    574,416.11x = 219,090,160,250.72
  5. Step 5: Solve for x
    x = 219,090,160,250.72/574,416.11
  6. Step 6: Final answer
    x = 381,413.68

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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.