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Finding the Fourth Proportional to 475,990.18, 656,753.78 and 269,263.32

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Solution

The fourth proportional to 475,990.18, 656,753.78 and 269,263.32 is: 371,519.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,990.18 : 656,753.78 = 269,263.32 : x
  2. Step 2: Convert to fraction form
    475,990.18/656,753.78 = 269,263.32/x
  3. Step 3: Cross multiply
    475,990.18x = 656,753.78 × 269,263.32
  4. Step 4: Simplify right side
    475,990.18x = 176,839,703,225.35
  5. Step 5: Solve for x
    x = 176,839,703,225.35/475,990.18
  6. Step 6: Final answer
    x = 371,519.65

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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.