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Finding the Fourth Proportional to 453,445.20, 679,584.60 and 275,763.60

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Solution

The fourth proportional to 453,445.20, 679,584.60 and 275,763.60 is: 413,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,445.20 : 679,584.60 = 275,763.60 : x
  2. Step 2: Convert to fraction form
    453,445.20/679,584.60 = 275,763.60/x
  3. Step 3: Cross multiply
    453,445.20x = 679,584.60 × 275,763.60
  4. Step 4: Simplify right side
    453,445.20x = 187,404,695,800.56
  5. Step 5: Solve for x
    x = 187,404,695,800.56/453,445.20
  6. Step 6: Final answer
    x = 413,290.73

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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.