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Finding the Fourth Proportional to 352,866.30, 486,796.77 and 238,107.12

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Solution

The fourth proportional to 352,866.30, 486,796.77 and 238,107.12 is: 328,480.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,866.30 : 486,796.77 = 238,107.12 : x
  2. Step 2: Convert to fraction form
    352,866.30/486,796.77 = 238,107.12/x
  3. Step 3: Cross multiply
    352,866.30x = 486,796.77 × 238,107.12
  4. Step 4: Simplify right side
    352,866.30x = 115,909,776,930.00
  5. Step 5: Solve for x
    x = 115,909,776,930.00/352,866.30
  6. Step 6: Final answer
    x = 328,480.72

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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.