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Finding the Fourth Proportional to 511,387.11, 767,267.70 and 237,963.72

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Solution

The fourth proportional to 511,387.11, 767,267.70 and 237,963.72 is: 357,032.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,387.11 : 767,267.70 = 237,963.72 : x
  2. Step 2: Convert to fraction form
    511,387.11/767,267.70 = 237,963.72/x
  3. Step 3: Cross multiply
    511,387.11x = 767,267.70 × 237,963.72
  4. Step 4: Simplify right side
    511,387.11x = 182,581,876,127.84
  5. Step 5: Solve for x
    x = 182,581,876,127.84/511,387.11
  6. Step 6: Final answer
    x = 357,032.61

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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.