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Finding the Fourth Proportional to 632,726.80, 948,813.72 and 189,391.12

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Solution

The fourth proportional to 632,726.80, 948,813.72 and 189,391.12 is: 284,003.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,726.80 : 948,813.72 = 189,391.12 : x
  2. Step 2: Convert to fraction form
    632,726.80/948,813.72 = 189,391.12/x
  3. Step 3: Cross multiply
    632,726.80x = 948,813.72 × 189,391.12
  4. Step 4: Simplify right side
    632,726.80x = 179,696,893,102.17
  5. Step 5: Solve for x
    x = 179,696,893,102.17/632,726.80
  6. Step 6: Final answer
    x = 284,003.92

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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.