Home / 543,370.20-815,055.30-341,291.40

Finding the Fourth Proportional to 543,370.20, 815,055.30 and 341,291.40

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Solution

The fourth proportional to 543,370.20, 815,055.30 and 341,291.40 is: 511,937.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,370.20 : 815,055.30 = 341,291.40 : x
  2. Step 2: Convert to fraction form
    543,370.20/815,055.30 = 341,291.40/x
  3. Step 3: Cross multiply
    543,370.20x = 815,055.30 × 341,291.40
  4. Step 4: Simplify right side
    543,370.20x = 278,171,364,414.42
  5. Step 5: Solve for x
    x = 278,171,364,414.42/543,370.20
  6. Step 6: Final answer
    x = 511,937.10

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Similar ratio
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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.