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Finding the Fourth Proportional to 313,282.48, 432,318.24 and 170,039.44

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Solution

The fourth proportional to 313,282.48, 432,318.24 and 170,039.44 is: 234,648.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,282.48 : 432,318.24 = 170,039.44 : x
  2. Step 2: Convert to fraction form
    313,282.48/432,318.24 = 170,039.44/x
  3. Step 3: Cross multiply
    313,282.48x = 432,318.24 × 170,039.44
  4. Step 4: Simplify right side
    313,282.48x = 73,511,151,431.39
  5. Step 5: Solve for x
    x = 73,511,151,431.39/313,282.48
  6. Step 6: Final answer
    x = 234,648.14

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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.