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Finding the Fourth Proportional to 329,394.71, 454,397.77 and 208,332.11

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Solution

The fourth proportional to 329,394.71, 454,397.77 and 208,332.11 is: 287,392.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,394.71 : 454,397.77 = 208,332.11 : x
  2. Step 2: Convert to fraction form
    329,394.71/454,397.77 = 208,332.11/x
  3. Step 3: Cross multiply
    329,394.71x = 454,397.77 × 208,332.11
  4. Step 4: Simplify right side
    329,394.71x = 94,665,645,161.73
  5. Step 5: Solve for x
    x = 94,665,645,161.73/329,394.71
  6. Step 6: Final answer
    x = 287,392.73

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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.