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Finding the Fourth Proportional to 313,899.80, 433,180.78 and 170,658.84

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Solution

The fourth proportional to 313,899.80, 433,180.78 and 170,658.84 is: 235,508.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,899.80 : 433,180.78 = 170,658.84 : x
  2. Step 2: Convert to fraction form
    313,899.80/433,180.78 = 170,658.84/x
  3. Step 3: Cross multiply
    313,899.80x = 433,180.78 × 170,658.84
  4. Step 4: Simplify right side
    313,899.80x = 73,926,129,425.10
  5. Step 5: Solve for x
    x = 73,926,129,425.10/313,899.80
  6. Step 6: Final answer
    x = 235,508.69

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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.