Home / 330,237.20-454,691.40-291,434.96

Finding the Fourth Proportional to 330,237.20, 454,691.40 and 291,434.96

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Solution

The fourth proportional to 330,237.20, 454,691.40 and 291,434.96 is: 401,266.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,237.20 : 454,691.40 = 291,434.96 : x
  2. Step 2: Convert to fraction form
    330,237.20/454,691.40 = 291,434.96/x
  3. Step 3: Cross multiply
    330,237.20x = 454,691.40 × 291,434.96
  4. Step 4: Simplify right side
    330,237.20x = 132,512,969,971.34
  5. Step 5: Solve for x
    x = 132,512,969,971.34/330,237.20
  6. Step 6: Final answer
    x = 401,266.03

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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.