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Finding the Fourth Proportional to 574,483.12, 861,324.96 and 254,461.28

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Solution

The fourth proportional to 574,483.12, 861,324.96 and 254,461.28 is: 381,514.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,483.12 : 861,324.96 = 254,461.28 : x
  2. Step 2: Convert to fraction form
    574,483.12/861,324.96 = 254,461.28/x
  3. Step 3: Cross multiply
    574,483.12x = 861,324.96 × 254,461.28
  4. Step 4: Simplify right side
    574,483.12x = 219,173,851,817.55
  5. Step 5: Solve for x
    x = 219,173,851,817.55/574,483.12
  6. Step 6: Final answer
    x = 381,514.87

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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.