Home / 318,827.85-439,982.79-173,633.83

Finding the Fourth Proportional to 318,827.85, 439,982.79 and 173,633.83

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Solution

The fourth proportional to 318,827.85, 439,982.79 and 173,633.83 is: 239,614.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,827.85 : 439,982.79 = 173,633.83 : x
  2. Step 2: Convert to fraction form
    318,827.85/439,982.79 = 173,633.83/x
  3. Step 3: Cross multiply
    318,827.85x = 439,982.79 × 173,633.83
  4. Step 4: Simplify right side
    318,827.85x = 76,395,895,210.70
  5. Step 5: Solve for x
    x = 76,395,895,210.70/318,827.85
  6. Step 6: Final answer
    x = 239,614.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.