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Finding the Fourth Proportional to 867,757.50, 1,301,659.29 and 276,781.50

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Solution

The fourth proportional to 867,757.50, 1,301,659.29 and 276,781.50 is: 415,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,757.50 : 1,301,659.29 = 276,781.50 : x
  2. Step 2: Convert to fraction form
    867,757.50/1,301,659.29 = 276,781.50/x
  3. Step 3: Cross multiply
    867,757.50x = 1,301,659.29 × 276,781.50
  4. Step 4: Simplify right side
    867,757.50x = 360,275,210,775.14
  5. Step 5: Solve for x
    x = 360,275,210,775.14/867,757.50
  6. Step 6: Final answer
    x = 415,179.60

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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.