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Finding the Fourth Proportional to 423,451.56, 634,694.16 and 170,570.22

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Solution

The fourth proportional to 423,451.56, 634,694.16 and 170,570.22 is: 255,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,451.56 : 634,694.16 = 170,570.22 : x
  2. Step 2: Convert to fraction form
    423,451.56/634,694.16 = 170,570.22/x
  3. Step 3: Cross multiply
    423,451.56x = 634,694.16 × 170,570.22
  4. Step 4: Simplify right side
    423,451.56x = 108,259,922,503.92
  5. Step 5: Solve for x
    x = 108,259,922,503.92/423,451.56
  6. Step 6: Final answer
    x = 255,660.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.