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Finding the Fourth Proportional to 591,271.80, 886,713.30 and 217,246.20

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Solution

The fourth proportional to 591,271.80, 886,713.30 and 217,246.20 is: 325,797.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,271.80 : 886,713.30 = 217,246.20 : x
  2. Step 2: Convert to fraction form
    591,271.80/886,713.30 = 217,246.20/x
  3. Step 3: Cross multiply
    591,271.80x = 886,713.30 × 217,246.20
  4. Step 4: Simplify right side
    591,271.80x = 192,635,094,914.46
  5. Step 5: Solve for x
    x = 192,635,094,914.46/591,271.80
  6. Step 6: Final answer
    x = 325,797.87

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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.