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Finding the Fourth Proportional to 454,755.74, 627,607.26 and 339,834.83

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Solution

The fourth proportional to 454,755.74, 627,607.26 and 339,834.83 is: 469,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,755.74 : 627,607.26 = 339,834.83 : x
  2. Step 2: Convert to fraction form
    454,755.74/627,607.26 = 339,834.83/x
  3. Step 3: Cross multiply
    454,755.74x = 627,607.26 × 339,834.83
  4. Step 4: Simplify right side
    454,755.74x = 213,282,803,370.83
  5. Step 5: Solve for x
    x = 213,282,803,370.83/454,755.74
  6. Step 6: Final answer
    x = 469,005.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.