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Finding the Fourth Proportional to 275,703.15, 413,554.73 and 220,407.15

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Solution

The fourth proportional to 275,703.15, 413,554.73 and 220,407.15 is: 330,610.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,703.15 : 413,554.73 = 220,407.15 : x
  2. Step 2: Convert to fraction form
    275,703.15/413,554.73 = 220,407.15/x
  3. Step 3: Cross multiply
    275,703.15x = 413,554.73 × 220,407.15
  4. Step 4: Simplify right side
    275,703.15x = 91,150,418,306.28
  5. Step 5: Solve for x
    x = 91,150,418,306.28/275,703.15
  6. Step 6: Final answer
    x = 330,610.73

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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.