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Finding the Fourth Proportional to 454,208.78, 626,808.71 and 247,476.20

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Solution

The fourth proportional to 454,208.78, 626,808.71 and 247,476.20 is: 341,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,208.78 : 626,808.71 = 247,476.20 : x
  2. Step 2: Convert to fraction form
    454,208.78/626,808.71 = 247,476.20/x
  3. Step 3: Cross multiply
    454,208.78x = 626,808.71 × 247,476.20
  4. Step 4: Simplify right side
    454,208.78x = 155,120,235,162.35
  5. Step 5: Solve for x
    x = 155,120,235,162.35/454,208.78
  6. Step 6: Final answer
    x = 341,517.47

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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.