Home / 330,631.89-456,277-185,469.85

Finding the Fourth Proportional to 330,631.89, 456,277 and 185,469.85

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Solution

The fourth proportional to 330,631.89, 456,277 and 185,469.85 is: 255,951.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,631.89 : 456,277 = 185,469.85 : x
  2. Step 2: Convert to fraction form
    330,631.89/456,277 = 185,469.85/x
  3. Step 3: Cross multiply
    330,631.89x = 456,277 × 185,469.85
  4. Step 4: Simplify right side
    330,631.89x = 84,625,626,748.45
  5. Step 5: Solve for x
    x = 84,625,626,748.45/330,631.89
  6. Step 6: Final answer
    x = 255,951.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.