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Finding the Fourth Proportional to 362,328.55, 543,328.80 and 137,614.30

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Solution

The fourth proportional to 362,328.55, 543,328.80 and 137,614.30 is: 206,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,328.55 : 543,328.80 = 137,614.30 : x
  2. Step 2: Convert to fraction form
    362,328.55/543,328.80 = 137,614.30/x
  3. Step 3: Cross multiply
    362,328.55x = 543,328.80 × 137,614.30
  4. Step 4: Simplify right side
    362,328.55x = 74,769,812,481.84
  5. Step 5: Solve for x
    x = 74,769,812,481.84/362,328.55
  6. Step 6: Final answer
    x = 206,359.15

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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.