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Finding the Fourth Proportional to 574,486.02, 861,358.86 and 274,959.36

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Solution

The fourth proportional to 574,486.02, 861,358.86 and 274,959.36 is: 412,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,486.02 : 861,358.86 = 274,959.36 : x
  2. Step 2: Convert to fraction form
    574,486.02/861,358.86 = 274,959.36/x
  3. Step 3: Cross multiply
    574,486.02x = 861,358.86 × 274,959.36
  4. Step 4: Simplify right side
    574,486.02x = 236,838,680,875.93
  5. Step 5: Solve for x
    x = 236,838,680,875.93/574,486.02
  6. Step 6: Final answer
    x = 412,261.87

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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.