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Finding the Fourth Proportional to 504,769.40, 756,990.30 and 167,719.55

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Solution

The fourth proportional to 504,769.40, 756,990.30 and 167,719.55 is: 251,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,769.40 : 756,990.30 = 167,719.55 : x
  2. Step 2: Convert to fraction form
    504,769.40/756,990.30 = 167,719.55/x
  3. Step 3: Cross multiply
    504,769.40x = 756,990.30 × 167,719.55
  4. Step 4: Simplify right side
    504,769.40x = 126,962,071,328.64
  5. Step 5: Solve for x
    x = 126,962,071,328.64/504,769.40
  6. Step 6: Final answer
    x = 251,524.90

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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.