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Finding the Fourth Proportional to 313,475.28, 432,600.90 and 177,505.56

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Solution

The fourth proportional to 313,475.28, 432,600.90 and 177,505.56 is: 244,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,475.28 : 432,600.90 = 177,505.56 : x
  2. Step 2: Convert to fraction form
    313,475.28/432,600.90 = 177,505.56/x
  3. Step 3: Cross multiply
    313,475.28x = 432,600.90 × 177,505.56
  4. Step 4: Simplify right side
    313,475.28x = 76,789,065,011.00
  5. Step 5: Solve for x
    x = 76,789,065,011.00/313,475.28
  6. Step 6: Final answer
    x = 244,960.51

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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.