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Finding the Fourth Proportional to 362,215.80, 543,323.70 and 220,498.20

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Solution

The fourth proportional to 362,215.80, 543,323.70 and 220,498.20 is: 330,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,215.80 : 543,323.70 = 220,498.20 : x
  2. Step 2: Convert to fraction form
    362,215.80/543,323.70 = 220,498.20/x
  3. Step 3: Cross multiply
    362,215.80x = 543,323.70 × 220,498.20
  4. Step 4: Simplify right side
    362,215.80x = 119,801,897,867.34
  5. Step 5: Solve for x
    x = 119,801,897,867.34/362,215.80
  6. Step 6: Final answer
    x = 330,747.30

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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.