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Finding the Fourth Proportional to 289,755.11, 399,945.45 and 175,015.52

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Solution

The fourth proportional to 289,755.11, 399,945.45 and 175,015.52 is: 241,571.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,755.11 : 399,945.45 = 175,015.52 : x
  2. Step 2: Convert to fraction form
    289,755.11/399,945.45 = 175,015.52/x
  3. Step 3: Cross multiply
    289,755.11x = 399,945.45 × 175,015.52
  4. Step 4: Simplify right side
    289,755.11x = 69,996,660,903.38
  5. Step 5: Solve for x
    x = 69,996,660,903.38/289,755.11
  6. Step 6: Final answer
    x = 241,571.79

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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.