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Finding the Fourth Proportional to 606,272.70, 908,424.90 and 381,230.40

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Solution

The fourth proportional to 606,272.70, 908,424.90 and 381,230.40 is: 571,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,272.70 : 908,424.90 = 381,230.40 : x
  2. Step 2: Convert to fraction form
    606,272.70/908,424.90 = 381,230.40/x
  3. Step 3: Cross multiply
    606,272.70x = 908,424.90 × 381,230.40
  4. Step 4: Simplify right side
    606,272.70x = 346,319,187,996.96
  5. Step 5: Solve for x
    x = 346,319,187,996.96/606,272.70
  6. Step 6: Final answer
    x = 571,226.76

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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.