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Finding the Fourth Proportional to 451,569.38, 622,654.98 and 288,007.16

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Solution

The fourth proportional to 451,569.38, 622,654.98 and 288,007.16 is: 397,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,569.38 : 622,654.98 = 288,007.16 : x
  2. Step 2: Convert to fraction form
    451,569.38/622,654.98 = 288,007.16/x
  3. Step 3: Cross multiply
    451,569.38x = 622,654.98 × 288,007.16
  4. Step 4: Simplify right side
    451,569.38x = 179,329,092,449.66
  5. Step 5: Solve for x
    x = 179,329,092,449.66/451,569.38
  6. Step 6: Final answer
    x = 397,124.12

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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.