Home / 664,151.72-996,965.09-344,217.92

Finding the Fourth Proportional to 664,151.72, 996,965.09 and 344,217.92

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Solution

The fourth proportional to 664,151.72, 996,965.09 and 344,217.92 is: 516,709.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,151.72 : 996,965.09 = 344,217.92 : x
  2. Step 2: Convert to fraction form
    664,151.72/996,965.09 = 344,217.92/x
  3. Step 3: Cross multiply
    664,151.72x = 996,965.09 × 344,217.92
  4. Step 4: Simplify right side
    664,151.72x = 343,173,242,886.50
  5. Step 5: Solve for x
    x = 343,173,242,886.50/664,151.72
  6. Step 6: Final answer
    x = 516,709.11

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1.5x scale

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.