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Finding the Fourth Proportional to 408,061.62, 563,113.80 and 226,768.91

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Solution

The fourth proportional to 408,061.62, 563,113.80 and 226,768.91 is: 312,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,061.62 : 563,113.80 = 226,768.91 : x
  2. Step 2: Convert to fraction form
    408,061.62/563,113.80 = 226,768.91/x
  3. Step 3: Cross multiply
    408,061.62x = 563,113.80 × 226,768.91
  4. Step 4: Simplify right side
    408,061.62x = 127,696,699,816.39
  5. Step 5: Solve for x
    x = 127,696,699,816.39/408,061.62
  6. Step 6: Final answer
    x = 312,934.85

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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.