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Finding the Fourth Proportional to 329,920.33, 495,230.45 and 292,214.38

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Solution

The fourth proportional to 329,920.33, 495,230.45 and 292,214.38 is: 438,631.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,920.33 : 495,230.45 = 292,214.38 : x
  2. Step 2: Convert to fraction form
    329,920.33/495,230.45 = 292,214.38/x
  3. Step 3: Cross multiply
    329,920.33x = 495,230.45 × 292,214.38
  4. Step 4: Simplify right side
    329,920.33x = 144,713,456,562.30
  5. Step 5: Solve for x
    x = 144,713,456,562.30/329,920.33
  6. Step 6: Final answer
    x = 438,631.52

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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.