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Finding the Fourth Proportional to 417,800.00, 626,932.86 and 225,670.55

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Solution

The fourth proportional to 417,800.00, 626,932.86 and 225,670.55 is: 338,631.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,800.00 : 626,932.86 = 225,670.55 : x
  2. Step 2: Convert to fraction form
    417,800.00/626,932.86 = 225,670.55/x
  3. Step 3: Cross multiply
    417,800.00x = 626,932.86 × 225,670.55
  4. Step 4: Simplify right side
    417,800.00x = 141,480,279,348.34
  5. Step 5: Solve for x
    x = 141,480,279,348.34/417,800.00
  6. Step 6: Final answer
    x = 338,631.59

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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.