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Finding the Fourth Proportional to 413,449.65, 620,174.48 and 132,966.90

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Solution

The fourth proportional to 413,449.65, 620,174.48 and 132,966.90 is: 199,450.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,449.65 : 620,174.48 = 132,966.90 : x
  2. Step 2: Convert to fraction form
    413,449.65/620,174.48 = 132,966.90/x
  3. Step 3: Cross multiply
    413,449.65x = 620,174.48 × 132,966.90
  4. Step 4: Simplify right side
    413,449.65x = 82,462,677,399.88
  5. Step 5: Solve for x
    x = 82,462,677,399.88/413,449.65
  6. Step 6: Final answer
    x = 199,450.35

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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.