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Finding the Fourth Proportional to 313,324.76, 432,388.71 and 170,084.90

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Solution

The fourth proportional to 313,324.76, 432,388.71 and 170,084.90 is: 234,717.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,324.76 : 432,388.71 = 170,084.90 : x
  2. Step 2: Convert to fraction form
    313,324.76/432,388.71 = 170,084.90/x
  3. Step 3: Cross multiply
    313,324.76x = 432,388.71 × 170,084.90
  4. Step 4: Simplify right side
    313,324.76x = 73,542,790,501.48
  5. Step 5: Solve for x
    x = 73,542,790,501.48/313,324.76
  6. Step 6: Final answer
    x = 234,717.46

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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.