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Finding the Fourth Proportional to 330,726.90, 496,310.92 and 120,364.76

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Solution

The fourth proportional to 330,726.90, 496,310.92 and 120,364.76 is: 180,627.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,726.90 : 496,310.92 = 120,364.76 : x
  2. Step 2: Convert to fraction form
    330,726.90/496,310.92 = 120,364.76/x
  3. Step 3: Cross multiply
    330,726.90x = 496,310.92 × 120,364.76
  4. Step 4: Simplify right side
    330,726.90x = 59,738,344,771.18
  5. Step 5: Solve for x
    x = 59,738,344,771.18/330,726.90
  6. Step 6: Final answer
    x = 180,627.41

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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.