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Finding the Fourth Proportional to 352,654.06, 486,811.58 and 238,087.88

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Solution

The fourth proportional to 352,654.06, 486,811.58 and 238,087.88 is: 328,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,654.06 : 486,811.58 = 238,087.88 : x
  2. Step 2: Convert to fraction form
    352,654.06/486,811.58 = 238,087.88/x
  3. Step 3: Cross multiply
    352,654.06x = 486,811.58 × 238,087.88
  4. Step 4: Simplify right side
    352,654.06x = 115,903,937,041.65
  5. Step 5: Solve for x
    x = 115,903,937,041.65/352,654.06
  6. Step 6: Final answer
    x = 328,661.85

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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.