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Finding the Fourth Proportional to 368,422.20, 552,633.30 and 275,110.20

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Solution

The fourth proportional to 368,422.20, 552,633.30 and 275,110.20 is: 412,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,422.20 : 552,633.30 = 275,110.20 : x
  2. Step 2: Convert to fraction form
    368,422.20/552,633.30 = 275,110.20/x
  3. Step 3: Cross multiply
    368,422.20x = 552,633.30 × 275,110.20
  4. Step 4: Simplify right side
    368,422.20x = 152,035,057,689.66
  5. Step 5: Solve for x
    x = 152,035,057,689.66/368,422.20
  6. Step 6: Final answer
    x = 412,665.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.