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Finding the Fourth Proportional to 352,672.50, 486,836.97 and 238,106.25

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Solution

The fourth proportional to 352,672.50, 486,836.97 and 238,106.25 is: 328,687.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,672.50 : 486,836.97 = 238,106.25 : x
  2. Step 2: Convert to fraction form
    352,672.50/486,836.97 = 238,106.25/x
  3. Step 3: Cross multiply
    352,672.50x = 486,836.97 × 238,106.25
  4. Step 4: Simplify right side
    352,672.50x = 115,918,925,288.06
  5. Step 5: Solve for x
    x = 115,918,925,288.06/352,672.50
  6. Step 6: Final answer
    x = 328,687.17

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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.