Home / 669,713.56-923,836.61-424,248.78

Finding the Fourth Proportional to 669,713.56, 923,836.61 and 424,248.78

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Solution

The fourth proportional to 669,713.56, 923,836.61 and 424,248.78 is: 585,230.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,713.56 : 923,836.61 = 424,248.78 : x
  2. Step 2: Convert to fraction form
    669,713.56/923,836.61 = 424,248.78/x
  3. Step 3: Cross multiply
    669,713.56x = 923,836.61 × 424,248.78
  4. Step 4: Simplify right side
    669,713.56x = 391,936,555,772.46
  5. Step 5: Solve for x
    x = 391,936,555,772.46/669,713.56
  6. Step 6: Final answer
    x = 585,230.14

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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.