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Finding the Fourth Proportional to 573,007.12, 859,510.68 and 217,939.12

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Solution

The fourth proportional to 573,007.12, 859,510.68 and 217,939.12 is: 326,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,007.12 : 859,510.68 = 217,939.12 : x
  2. Step 2: Convert to fraction form
    573,007.12/859,510.68 = 217,939.12/x
  3. Step 3: Cross multiply
    573,007.12x = 859,510.68 × 217,939.12
  4. Step 4: Simplify right side
    573,007.12x = 187,321,001,229.80
  5. Step 5: Solve for x
    x = 187,321,001,229.80/573,007.12
  6. Step 6: Final answer
    x = 326,908.68

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Similar ratio
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1.5x scale

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.