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Finding the Fourth Proportional to 472,061.65, 708,091.83 and 219,203.87

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Solution

The fourth proportional to 472,061.65, 708,091.83 and 219,203.87 is: 328,805.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,061.65 : 708,091.83 = 219,203.87 : x
  2. Step 2: Convert to fraction form
    472,061.65/708,091.83 = 219,203.87/x
  3. Step 3: Cross multiply
    472,061.65x = 708,091.83 × 219,203.87
  4. Step 4: Simplify right side
    472,061.65x = 155,216,469,451.38
  5. Step 5: Solve for x
    x = 155,216,469,451.38/472,061.65
  6. Step 6: Final answer
    x = 328,805.51

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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.