Home / 439,789.73-659,747.48-140,273.71

Finding the Fourth Proportional to 439,789.73, 659,747.48 and 140,273.71

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Solution

The fourth proportional to 439,789.73, 659,747.48 and 140,273.71 is: 210,430.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,789.73 : 659,747.48 = 140,273.71 : x
  2. Step 2: Convert to fraction form
    439,789.73/659,747.48 = 140,273.71/x
  3. Step 3: Cross multiply
    439,789.73x = 659,747.48 × 140,273.71
  4. Step 4: Simplify right side
    439,789.73x = 92,545,224,332.01
  5. Step 5: Solve for x
    x = 92,545,224,332.01/439,789.73
  6. Step 6: Final answer
    x = 210,430.62

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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.