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Finding the Fourth Proportional to 330,755.80, 496,133.70 and 120,366.40

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Solution

The fourth proportional to 330,755.80, 496,133.70 and 120,366.40 is: 180,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,755.80 : 496,133.70 = 120,366.40 : x
  2. Step 2: Convert to fraction form
    330,755.80/496,133.70 = 120,366.40/x
  3. Step 3: Cross multiply
    330,755.80x = 496,133.70 × 120,366.40
  4. Step 4: Simplify right side
    330,755.80x = 59,717,827,387.68
  5. Step 5: Solve for x
    x = 59,717,827,387.68/330,755.80
  6. Step 6: Final answer
    x = 180,549.60

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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.