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Finding the Fourth Proportional to 362,280.30, 543,420.45 and 222,117.90

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Solution

The fourth proportional to 362,280.30, 543,420.45 and 222,117.90 is: 333,176.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,280.30 : 543,420.45 = 222,117.90 : x
  2. Step 2: Convert to fraction form
    362,280.30/543,420.45 = 222,117.90/x
  3. Step 3: Cross multiply
    362,280.30x = 543,420.45 × 222,117.90
  4. Step 4: Simplify right side
    362,280.30x = 120,703,409,171.06
  5. Step 5: Solve for x
    x = 120,703,409,171.06/362,280.30
  6. Step 6: Final answer
    x = 333,176.85

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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.