Home / 669,255.76-923,592.20-378,844.88

Finding the Fourth Proportional to 669,255.76, 923,592.20 and 378,844.88

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Solution

The fourth proportional to 669,255.76, 923,592.20 and 378,844.88 is: 522,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,255.76 : 923,592.20 = 378,844.88 : x
  2. Step 2: Convert to fraction form
    669,255.76/923,592.20 = 378,844.88/x
  3. Step 3: Cross multiply
    669,255.76x = 923,592.20 × 378,844.88
  4. Step 4: Simplify right side
    669,255.76x = 349,898,176,177.94
  5. Step 5: Solve for x
    x = 349,898,176,177.94/669,255.76
  6. Step 6: Final answer
    x = 522,816.83

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Double scale
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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.