Home / 439,439.38-659,211.01-139,814.91

Finding the Fourth Proportional to 439,439.38, 659,211.01 and 139,814.91

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Solution

The fourth proportional to 439,439.38, 659,211.01 and 139,814.91 is: 209,738.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,439.38 : 659,211.01 = 139,814.91 : x
  2. Step 2: Convert to fraction form
    439,439.38/659,211.01 = 139,814.91/x
  3. Step 3: Cross multiply
    439,439.38x = 659,211.01 × 139,814.91
  4. Step 4: Simplify right side
    439,439.38x = 92,167,527,684.62
  5. Step 5: Solve for x
    x = 92,167,527,684.62/439,439.38
  6. Step 6: Final answer
    x = 209,738.89

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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.