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Finding the Fourth Proportional to 362,217.80, 543,326.70 and 328,392.20

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Solution

The fourth proportional to 362,217.80, 543,326.70 and 328,392.20 is: 492,588.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,217.80 : 543,326.70 = 328,392.20 : x
  2. Step 2: Convert to fraction form
    362,217.80/543,326.70 = 328,392.20/x
  3. Step 3: Cross multiply
    362,217.80x = 543,326.70 × 328,392.20
  4. Step 4: Simplify right side
    362,217.80x = 178,424,250,331.74
  5. Step 5: Solve for x
    x = 178,424,250,331.74/362,217.80
  6. Step 6: Final answer
    x = 492,588.30

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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.