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Finding the Fourth Proportional to 313,633.16, 432,718.36 and 177,645.48

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Solution

The fourth proportional to 313,633.16, 432,718.36 and 177,645.48 is: 245,096.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,633.16 : 432,718.36 = 177,645.48 : x
  2. Step 2: Convert to fraction form
    313,633.16/432,718.36 = 177,645.48/x
  3. Step 3: Cross multiply
    313,633.16x = 432,718.36 × 177,645.48
  4. Step 4: Simplify right side
    313,633.16x = 76,870,460,767.01
  5. Step 5: Solve for x
    x = 76,870,460,767.01/313,633.16
  6. Step 6: Final answer
    x = 245,096.73

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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.