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Finding the Fourth Proportional to 362,340.55, 543,346.80 and 137,626.30

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Solution

The fourth proportional to 362,340.55, 543,346.80 and 137,626.30 is: 206,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,340.55 : 543,346.80 = 137,626.30 : x
  2. Step 2: Convert to fraction form
    362,340.55/543,346.80 = 137,626.30/x
  3. Step 3: Cross multiply
    362,340.55x = 543,346.80 × 137,626.30
  4. Step 4: Simplify right side
    362,340.55x = 74,778,809,700.84
  5. Step 5: Solve for x
    x = 74,778,809,700.84/362,340.55
  6. Step 6: Final answer
    x = 206,377.15

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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.