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Finding the Fourth Proportional to 443,305.28, 611,609.60 and 252,270.88

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Solution

The fourth proportional to 443,305.28, 611,609.60 and 252,270.88 is: 348,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,305.28 : 611,609.60 = 252,270.88 : x
  2. Step 2: Convert to fraction form
    443,305.28/611,609.60 = 252,270.88/x
  3. Step 3: Cross multiply
    443,305.28x = 611,609.60 × 252,270.88
  4. Step 4: Simplify right side
    443,305.28x = 154,291,292,008.45
  5. Step 5: Solve for x
    x = 154,291,292,008.45/443,305.28
  6. Step 6: Final answer
    x = 348,047.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.