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Finding the Fourth Proportional to 573,541.16, 859,808.72 and 218,318.90

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Solution

The fourth proportional to 573,541.16, 859,808.72 and 218,318.90 is: 327,286.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,541.16 : 859,808.72 = 218,318.90 : x
  2. Step 2: Convert to fraction form
    573,541.16/859,808.72 = 218,318.90/x
  3. Step 3: Cross multiply
    573,541.16x = 859,808.72 × 218,318.90
  4. Step 4: Simplify right side
    573,541.16x = 187,712,490,207.56
  5. Step 5: Solve for x
    x = 187,712,490,207.56/573,541.16
  6. Step 6: Final answer
    x = 327,286.87

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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.