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Finding the Fourth Proportional to 608,423.40, 912,330.42 and 187,644.60

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Solution

The fourth proportional to 608,423.40, 912,330.42 and 187,644.60 is: 281,372.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,423.40 : 912,330.42 = 187,644.60 : x
  2. Step 2: Convert to fraction form
    608,423.40/912,330.42 = 187,644.60/x
  3. Step 3: Cross multiply
    608,423.40x = 912,330.42 × 187,644.60
  4. Step 4: Simplify right side
    608,423.40x = 171,193,876,728.73
  5. Step 5: Solve for x
    x = 171,193,876,728.73/608,423.40
  6. Step 6: Final answer
    x = 281,372.93

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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.