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Finding the Fourth Proportional to 518,294.78, 777,481.52 and 176,632.01

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Solution

The fourth proportional to 518,294.78, 777,481.52 and 176,632.01 is: 264,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,294.78 : 777,481.52 = 176,632.01 : x
  2. Step 2: Convert to fraction form
    518,294.78/777,481.52 = 176,632.01/x
  3. Step 3: Cross multiply
    518,294.78x = 777,481.52 × 176,632.01
  4. Step 4: Simplify right side
    518,294.78x = 137,328,126,000.74
  5. Step 5: Solve for x
    x = 137,328,126,000.74/518,294.78
  6. Step 6: Final answer
    x = 264,961.43

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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.