Home / 543,505.20-815,257.80-169,527.60

Finding the Fourth Proportional to 543,505.20, 815,257.80 and 169,527.60

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Solution

The fourth proportional to 543,505.20, 815,257.80 and 169,527.60 is: 254,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,505.20 : 815,257.80 = 169,527.60 : x
  2. Step 2: Convert to fraction form
    543,505.20/815,257.80 = 169,527.60/x
  3. Step 3: Cross multiply
    543,505.20x = 815,257.80 × 169,527.60
  4. Step 4: Simplify right side
    543,505.20x = 138,208,698,215.28
  5. Step 5: Solve for x
    x = 138,208,698,215.28/543,505.20
  6. Step 6: Final answer
    x = 254,291.40

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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.