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Finding the Fourth Proportional to 632,761.69, 873,618.67 and 564,661.55

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Solution

The fourth proportional to 632,761.69, 873,618.67 and 564,661.55 is: 779,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,761.69 : 873,618.67 = 564,661.55 : x
  2. Step 2: Convert to fraction form
    632,761.69/873,618.67 = 564,661.55/x
  3. Step 3: Cross multiply
    632,761.69x = 873,618.67 × 564,661.55
  4. Step 4: Simplify right side
    632,761.69x = 493,298,868,715.44
  5. Step 5: Solve for x
    x = 493,298,868,715.44/632,761.69
  6. Step 6: Final answer
    x = 779,596.61

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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.