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Finding the Fourth Proportional to 531,729.28, 797,327.40 and 176,618.80

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Solution

The fourth proportional to 531,729.28, 797,327.40 and 176,618.80 is: 264,839.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,729.28 : 797,327.40 = 176,618.80 : x
  2. Step 2: Convert to fraction form
    531,729.28/797,327.40 = 176,618.80/x
  3. Step 3: Cross multiply
    531,729.28x = 797,327.40 × 176,618.80
  4. Step 4: Simplify right side
    531,729.28x = 140,823,008,595.12
  5. Step 5: Solve for x
    x = 140,823,008,595.12/531,729.28
  6. Step 6: Final answer
    x = 264,839.67

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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.