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Finding the Fourth Proportional to 543,351.90, 815,023.80 and 164,271.90

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Solution

The fourth proportional to 543,351.90, 815,023.80 and 164,271.90 is: 246,406.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,351.90 : 815,023.80 = 164,271.90 : x
  2. Step 2: Convert to fraction form
    543,351.90/815,023.80 = 164,271.90/x
  3. Step 3: Cross multiply
    543,351.90x = 815,023.80 × 164,271.90
  4. Step 4: Simplify right side
    543,351.90x = 133,885,508,171.22
  5. Step 5: Solve for x
    x = 133,885,508,171.22/543,351.90
  6. Step 6: Final answer
    x = 246,406.63

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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.