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Finding the Fourth Proportional to 305,864.20, 458,796.30 and 165,896.20

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Solution

The fourth proportional to 305,864.20, 458,796.30 and 165,896.20 is: 248,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,864.20 : 458,796.30 = 165,896.20 : x
  2. Step 2: Convert to fraction form
    305,864.20/458,796.30 = 165,896.20/x
  3. Step 3: Cross multiply
    305,864.20x = 458,796.30 × 165,896.20
  4. Step 4: Simplify right side
    305,864.20x = 76,112,562,744.06
  5. Step 5: Solve for x
    x = 76,112,562,744.06/305,864.20
  6. Step 6: Final answer
    x = 248,844.30

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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.