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Finding the Fourth Proportional to 313,262.88, 432,291.78 and 170,020.04

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Solution

The fourth proportional to 313,262.88, 432,291.78 and 170,020.04 is: 234,621.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,262.88 : 432,291.78 = 170,020.04 : x
  2. Step 2: Convert to fraction form
    313,262.88/432,291.78 = 170,020.04/x
  3. Step 3: Cross multiply
    313,262.88x = 432,291.78 × 170,020.04
  4. Step 4: Simplify right side
    313,262.88x = 73,498,265,727.27
  5. Step 5: Solve for x
    x = 73,498,265,727.27/313,262.88
  6. Step 6: Final answer
    x = 234,621.69

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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.