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Finding the Fourth Proportional to 518,634.28, 777,484.54 and 186,132.52

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Solution

The fourth proportional to 518,634.28, 777,484.54 and 186,132.52 is: 279,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,634.28 : 777,484.54 = 186,132.52 : x
  2. Step 2: Convert to fraction form
    518,634.28/777,484.54 = 186,132.52/x
  3. Step 3: Cross multiply
    518,634.28x = 777,484.54 × 186,132.52
  4. Step 4: Simplify right side
    518,634.28x = 144,715,156,691.24
  5. Step 5: Solve for x
    x = 144,715,156,691.24/518,634.28
  6. Step 6: Final answer
    x = 279,031.22

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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.