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Finding the Fourth Proportional to 552,581.34, 762,666.66 and 345,945.80

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Solution

The fourth proportional to 552,581.34, 762,666.66 and 345,945.80 is: 477,470.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,581.34 : 762,666.66 = 345,945.80 : x
  2. Step 2: Convert to fraction form
    552,581.34/762,666.66 = 345,945.80/x
  3. Step 3: Cross multiply
    552,581.34x = 762,666.66 × 345,945.80
  4. Step 4: Simplify right side
    552,581.34x = 263,841,324,013.70
  5. Step 5: Solve for x
    x = 263,841,324,013.70/552,581.34
  6. Step 6: Final answer
    x = 477,470.56

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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.