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Finding the Fourth Proportional to 318,892.80, 477,483.84 and 178,250.88

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Solution

The fourth proportional to 318,892.80, 477,483.84 and 178,250.88 is: 266,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,892.80 : 477,483.84 = 178,250.88 : x
  2. Step 2: Convert to fraction form
    318,892.80/477,483.84 = 178,250.88/x
  3. Step 3: Cross multiply
    318,892.80x = 477,483.84 × 178,250.88
  4. Step 4: Simplify right side
    318,892.80x = 85,111,914,665.78
  5. Step 5: Solve for x
    x = 85,111,914,665.78/318,892.80
  6. Step 6: Final answer
    x = 266,898.20

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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.