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Finding the Fourth Proportional to 368,422.40, 552,633.60 and 275,110.40

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Solution

The fourth proportional to 368,422.40, 552,633.60 and 275,110.40 is: 412,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,422.40 : 552,633.60 = 275,110.40 : x
  2. Step 2: Convert to fraction form
    368,422.40/552,633.60 = 275,110.40/x
  3. Step 3: Cross multiply
    368,422.40x = 552,633.60 × 275,110.40
  4. Step 4: Simplify right side
    368,422.40x = 152,035,250,749.44
  5. Step 5: Solve for x
    x = 152,035,250,749.44/368,422.40
  6. Step 6: Final answer
    x = 412,665.60

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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.