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Finding the Fourth Proportional to 552,666.60, 828,999.90 and 316,033.20

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Solution

The fourth proportional to 552,666.60, 828,999.90 and 316,033.20 is: 474,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,666.60 : 828,999.90 = 316,033.20 : x
  2. Step 2: Convert to fraction form
    552,666.60/828,999.90 = 316,033.20/x
  3. Step 3: Cross multiply
    552,666.60x = 828,999.90 × 316,033.20
  4. Step 4: Simplify right side
    552,666.60x = 261,991,491,196.68
  5. Step 5: Solve for x
    x = 261,991,491,196.68/552,666.60
  6. Step 6: Final answer
    x = 474,049.80

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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.