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Finding the Fourth Proportional to 546,979.64, 820,565.76 and 187,065.88

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Solution

The fourth proportional to 546,979.64, 820,565.76 and 187,065.88 is: 280,631.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,979.64 : 820,565.76 = 187,065.88 : x
  2. Step 2: Convert to fraction form
    546,979.64/820,565.76 = 187,065.88/x
  3. Step 3: Cross multiply
    546,979.64x = 820,565.76 × 187,065.88
  4. Step 4: Simplify right side
    546,979.64x = 153,499,855,992.27
  5. Step 5: Solve for x
    x = 153,499,855,992.27/546,979.64
  6. Step 6: Final answer
    x = 280,631.75

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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.