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Finding the Fourth Proportional to 482,587.86, 666,011.79 and 267,724.20

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Solution

The fourth proportional to 482,587.86, 666,011.79 and 267,724.20 is: 369,481.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,587.86 : 666,011.79 = 267,724.20 : x
  2. Step 2: Convert to fraction form
    482,587.86/666,011.79 = 267,724.20/x
  3. Step 3: Cross multiply
    482,587.86x = 666,011.79 × 267,724.20
  4. Step 4: Simplify right side
    482,587.86x = 178,307,473,668.32
  5. Step 5: Solve for x
    x = 178,307,473,668.32/482,587.86
  6. Step 6: Final answer
    x = 369,481.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.