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Finding the Fourth Proportional to 313,696.23, 432,903.54 and 170,456.27

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Solution

The fourth proportional to 313,696.23, 432,903.54 and 170,456.27 is: 235,231.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,696.23 : 432,903.54 = 170,456.27 : x
  2. Step 2: Convert to fraction form
    313,696.23/432,903.54 = 170,456.27/x
  3. Step 3: Cross multiply
    313,696.23x = 432,903.54 × 170,456.27
  4. Step 4: Simplify right side
    313,696.23x = 73,791,123,780.45
  5. Step 5: Solve for x
    x = 73,791,123,780.45/313,696.23
  6. Step 6: Final answer
    x = 235,231.15

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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.