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Finding the Fourth Proportional to 313,501.80, 432,629.46 and 177,532.20

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Solution

The fourth proportional to 313,501.80, 432,629.46 and 177,532.20 is: 244,992.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,501.80 : 432,629.46 = 177,532.20 : x
  2. Step 2: Convert to fraction form
    313,501.80/432,629.46 = 177,532.20/x
  3. Step 3: Cross multiply
    313,501.80x = 432,629.46 × 177,532.20
  4. Step 4: Simplify right side
    313,501.80x = 76,805,659,818.61
  5. Step 5: Solve for x
    x = 76,805,659,818.61/313,501.80
  6. Step 6: Final answer
    x = 244,992.72

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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.