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Finding the Fourth Proportional to 610,475.40, 915,081.30 and 273,677.40

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Solution

The fourth proportional to 610,475.40, 915,081.30 and 273,677.40 is: 410,232.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,475.40 : 915,081.30 = 273,677.40 : x
  2. Step 2: Convert to fraction form
    610,475.40/915,081.30 = 273,677.40/x
  3. Step 3: Cross multiply
    610,475.40x = 915,081.30 × 273,677.40
  4. Step 4: Simplify right side
    610,475.40x = 250,437,070,972.62
  5. Step 5: Solve for x
    x = 250,437,070,972.62/610,475.40
  6. Step 6: Final answer
    x = 410,232.86

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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.