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Finding the Fourth Proportional to 313,479.48, 432,628.44 and 177,537.24

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Solution

The fourth proportional to 313,479.48, 432,628.44 and 177,537.24 is: 245,016.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,479.48 : 432,628.44 = 177,537.24 : x
  2. Step 2: Convert to fraction form
    313,479.48/432,628.44 = 177,537.24/x
  3. Step 3: Cross multiply
    313,479.48x = 432,628.44 × 177,537.24
  4. Step 4: Simplify right side
    313,479.48x = 76,807,659,183.11
  5. Step 5: Solve for x
    x = 76,807,659,183.11/313,479.48
  6. Step 6: Final answer
    x = 245,016.55

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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.