Home / 664,835.28-923,666.57-656,863.66

Finding the Fourth Proportional to 664,835.28, 923,666.57 and 656,863.66

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Solution

The fourth proportional to 664,835.28, 923,666.57 and 656,863.66 is: 912,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,835.28 : 923,666.57 = 656,863.66 : x
  2. Step 2: Convert to fraction form
    664,835.28/923,666.57 = 656,863.66/x
  3. Step 3: Cross multiply
    664,835.28x = 923,666.57 × 656,863.66
  4. Step 4: Simplify right side
    664,835.28x = 606,723,003,789.85
  5. Step 5: Solve for x
    x = 606,723,003,789.85/664,835.28
  6. Step 6: Final answer
    x = 912,591.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.