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Finding the Fourth Proportional to 403,497.40, 605,920.86 and 252,046.96

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Solution

The fourth proportional to 403,497.40, 605,920.86 and 252,046.96 is: 378,491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,497.40 : 605,920.86 = 252,046.96 : x
  2. Step 2: Convert to fraction form
    403,497.40/605,920.86 = 252,046.96/x
  3. Step 3: Cross multiply
    403,497.40x = 605,920.86 × 252,046.96
  4. Step 4: Simplify right side
    403,497.40x = 152,720,510,763.59
  5. Step 5: Solve for x
    x = 152,720,510,763.59/403,497.40
  6. Step 6: Final answer
    x = 378,491.93

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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.