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Finding the Fourth Proportional to 313,636.11, 432,839.24 and 177,671.18

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Solution

The fourth proportional to 313,636.11, 432,839.24 and 177,671.18 is: 245,198.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,636.11 : 432,839.24 = 177,671.18 : x
  2. Step 2: Convert to fraction form
    313,636.11/432,839.24 = 177,671.18/x
  3. Step 3: Cross multiply
    313,636.11x = 432,839.24 × 177,671.18
  4. Step 4: Simplify right side
    313,636.11x = 76,903,056,587.56
  5. Step 5: Solve for x
    x = 76,903,056,587.56/313,636.11
  6. Step 6: Final answer
    x = 245,198.35

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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.