Home / 543,819.80-815,729.70-344,365.40

Finding the Fourth Proportional to 543,819.80, 815,729.70 and 344,365.40

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Solution

The fourth proportional to 543,819.80, 815,729.70 and 344,365.40 is: 516,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,819.80 : 815,729.70 = 344,365.40 : x
  2. Step 2: Convert to fraction form
    543,819.80/815,729.70 = 344,365.40/x
  3. Step 3: Cross multiply
    543,819.80x = 815,729.70 × 344,365.40
  4. Step 4: Simplify right side
    543,819.80x = 280,909,084,432.38
  5. Step 5: Solve for x
    x = 280,909,084,432.38/543,819.80
  6. Step 6: Final answer
    x = 516,548.10

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Similar ratio
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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.