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Finding the Fourth Proportional to 439,713.99, 659,609.87 and 239,948.55

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Solution

The fourth proportional to 439,713.99, 659,609.87 and 239,948.55 is: 359,944.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,713.99 : 659,609.87 = 239,948.55 : x
  2. Step 2: Convert to fraction form
    439,713.99/659,609.87 = 239,948.55/x
  3. Step 3: Cross multiply
    439,713.99x = 659,609.87 × 239,948.55
  4. Step 4: Simplify right side
    439,713.99x = 158,272,430,672.45
  5. Step 5: Solve for x
    x = 158,272,430,672.45/439,713.99
  6. Step 6: Final answer
    x = 359,944.04

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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.