Home / 391,934.03-540,853.20-230,795.87

Finding the Fourth Proportional to 391,934.03, 540,853.20 and 230,795.87

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Solution

The fourth proportional to 391,934.03, 540,853.20 and 230,795.87 is: 318,489.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,934.03 : 540,853.20 = 230,795.87 : x
  2. Step 2: Convert to fraction form
    391,934.03/540,853.20 = 230,795.87/x
  3. Step 3: Cross multiply
    391,934.03x = 540,853.20 × 230,795.87
  4. Step 4: Simplify right side
    391,934.03x = 124,826,684,836.28
  5. Step 5: Solve for x
    x = 124,826,684,836.28/391,934.03
  6. Step 6: Final answer
    x = 318,489.02

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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.