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Finding the Fourth Proportional to 362,280.80, 543,421.20 and 222,118.40

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Solution

The fourth proportional to 362,280.80, 543,421.20 and 222,118.40 is: 333,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,280.80 : 543,421.20 = 222,118.40 : x
  2. Step 2: Convert to fraction form
    362,280.80/543,421.20 = 222,118.40/x
  3. Step 3: Cross multiply
    362,280.80x = 543,421.20 × 222,118.40
  4. Step 4: Simplify right side
    362,280.80x = 120,703,847,470.08
  5. Step 5: Solve for x
    x = 120,703,847,470.08/362,280.80
  6. Step 6: Final answer
    x = 333,177.60

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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.