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Finding the Fourth Proportional to 577,589.12, 866,441.54 and 198,459.90

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Solution

The fourth proportional to 577,589.12, 866,441.54 and 198,459.90 is: 297,709.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,589.12 : 866,441.54 = 198,459.90 : x
  2. Step 2: Convert to fraction form
    577,589.12/866,441.54 = 198,459.90/x
  3. Step 3: Cross multiply
    577,589.12x = 866,441.54 × 198,459.90
  4. Step 4: Simplify right side
    577,589.12x = 171,953,900,391.95
  5. Step 5: Solve for x
    x = 171,953,900,391.95/577,589.12
  6. Step 6: Final answer
    x = 297,709.73

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Similar ratio
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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.