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Finding the Fourth Proportional to 543,699.84, 815,549.80 and 169,754.88

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Solution

The fourth proportional to 543,699.84, 815,549.80 and 169,754.88 is: 254,632.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,699.84 : 815,549.80 = 169,754.88 : x
  2. Step 2: Convert to fraction form
    543,699.84/815,549.80 = 169,754.88/x
  3. Step 3: Cross multiply
    543,699.84x = 815,549.80 × 169,754.88
  4. Step 4: Simplify right side
    543,699.84x = 138,443,558,433.02
  5. Step 5: Solve for x
    x = 138,443,558,433.02/543,699.84
  6. Step 6: Final answer
    x = 254,632.33

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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.