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Finding the Fourth Proportional to 610,532.20, 915,793.98 and 189,807.40

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Solution

The fourth proportional to 610,532.20, 915,793.98 and 189,807.40 is: 284,709.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,532.20 : 915,793.98 = 189,807.40 : x
  2. Step 2: Convert to fraction form
    610,532.20/915,793.98 = 189,807.40/x
  3. Step 3: Cross multiply
    610,532.20x = 915,793.98 × 189,807.40
  4. Step 4: Simplify right side
    610,532.20x = 173,824,474,279.45
  5. Step 5: Solve for x
    x = 173,824,474,279.45/610,532.20
  6. Step 6: Final answer
    x = 284,709.76

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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.