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Finding the Fourth Proportional to 472,561.75, 652,111.50 and 268,585.75

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Solution

The fourth proportional to 472,561.75, 652,111.50 and 268,585.75 is: 370,634.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,561.75 : 652,111.50 = 268,585.75 : x
  2. Step 2: Convert to fraction form
    472,561.75/652,111.50 = 268,585.75/x
  3. Step 3: Cross multiply
    472,561.75x = 652,111.50 × 268,585.75
  4. Step 4: Simplify right side
    472,561.75x = 175,147,856,311.13
  5. Step 5: Solve for x
    x = 175,147,856,311.13/472,561.75
  6. Step 6: Final answer
    x = 370,634.86

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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.