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Finding the Fourth Proportional to 437,818.60, 658,110.30 and 412,935.40

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Solution

The fourth proportional to 437,818.60, 658,110.30 and 412,935.40 is: 620,706.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,818.60 : 658,110.30 = 412,935.40 : x
  2. Step 2: Convert to fraction form
    437,818.60/658,110.30 = 412,935.40/x
  3. Step 3: Cross multiply
    437,818.60x = 658,110.30 × 412,935.40
  4. Step 4: Simplify right side
    437,818.60x = 271,757,039,974.62
  5. Step 5: Solve for x
    x = 271,757,039,974.62/437,818.60
  6. Step 6: Final answer
    x = 620,706.93

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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.