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Finding the Fourth Proportional to 591,259.80, 886,695.30 and 217,234.20

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Solution

The fourth proportional to 591,259.80, 886,695.30 and 217,234.20 is: 325,779.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,259.80 : 886,695.30 = 217,234.20 : x
  2. Step 2: Convert to fraction form
    591,259.80/886,695.30 = 217,234.20/x
  3. Step 3: Cross multiply
    591,259.80x = 886,695.30 × 217,234.20
  4. Step 4: Simplify right side
    591,259.80x = 192,620,544,139.26
  5. Step 5: Solve for x
    x = 192,620,544,139.26/591,259.80
  6. Step 6: Final answer
    x = 325,779.88

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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.