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Finding the Fourth Proportional to 574,640.76, 861,369.71 and 254,943.19

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Solution

The fourth proportional to 574,640.76, 861,369.71 and 254,943.19 is: 382,152.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,640.76 : 861,369.71 = 254,943.19 : x
  2. Step 2: Convert to fraction form
    574,640.76/861,369.71 = 254,943.19/x
  3. Step 3: Cross multiply
    574,640.76x = 861,369.71 × 254,943.19
  4. Step 4: Simplify right side
    574,640.76x = 219,600,336,055.21
  5. Step 5: Solve for x
    x = 219,600,336,055.21/574,640.76
  6. Step 6: Final answer
    x = 382,152.39

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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.