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Finding the Fourth Proportional to 633,616.38, 874,414.71 and 361,728.54

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Solution

The fourth proportional to 633,616.38, 874,414.71 and 361,728.54 is: 499,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,616.38 : 874,414.71 = 361,728.54 : x
  2. Step 2: Convert to fraction form
    633,616.38/874,414.71 = 361,728.54/x
  3. Step 3: Cross multiply
    633,616.38x = 874,414.71 × 361,728.54
  4. Step 4: Simplify right side
    633,616.38x = 316,300,756,402.82
  5. Step 5: Solve for x
    x = 316,300,756,402.82/633,616.38
  6. Step 6: Final answer
    x = 499,199.15

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1.5x scale

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.