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Finding the Fourth Proportional to 362,218.60, 543,327.90 and 329,559.40

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Solution

The fourth proportional to 362,218.60, 543,327.90 and 329,559.40 is: 494,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,218.60 : 543,327.90 = 329,559.40 : x
  2. Step 2: Convert to fraction form
    362,218.60/543,327.90 = 329,559.40/x
  3. Step 3: Cross multiply
    362,218.60x = 543,327.90 × 329,559.40
  4. Step 4: Simplify right side
    362,218.60x = 179,058,816,727.26
  5. Step 5: Solve for x
    x = 179,058,816,727.26/362,218.60
  6. Step 6: Final answer
    x = 494,339.10

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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.