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Finding the Fourth Proportional to 573,294.70, 859,942.05 and 384,337.90

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Solution

The fourth proportional to 573,294.70, 859,942.05 and 384,337.90 is: 576,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,294.70 : 859,942.05 = 384,337.90 : x
  2. Step 2: Convert to fraction form
    573,294.70/859,942.05 = 384,337.90/x
  3. Step 3: Cross multiply
    573,294.70x = 859,942.05 × 384,337.90
  4. Step 4: Simplify right side
    573,294.70x = 330,508,321,618.70
  5. Step 5: Solve for x
    x = 330,508,321,618.70/573,294.70
  6. Step 6: Final answer
    x = 576,506.85

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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.