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Finding the Fourth Proportional to 403,721.52, 606,117.96 and 344,934.96

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Solution

The fourth proportional to 403,721.52, 606,117.96 and 344,934.96 is: 517,860.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,721.52 : 606,117.96 = 344,934.96 : x
  2. Step 2: Convert to fraction form
    403,721.52/606,117.96 = 344,934.96/x
  3. Step 3: Cross multiply
    403,721.52x = 606,117.96 × 344,934.96
  4. Step 4: Simplify right side
    403,721.52x = 209,071,274,287.88
  5. Step 5: Solve for x
    x = 209,071,274,287.88/403,721.52
  6. Step 6: Final answer
    x = 517,860.12

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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.