Home / 685,719.03-1,028,646.17-236,380.75

Finding the Fourth Proportional to 685,719.03, 1,028,646.17 and 236,380.75

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Solution

The fourth proportional to 685,719.03, 1,028,646.17 and 236,380.75 is: 354,594.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,719.03 : 1,028,646.17 = 236,380.75 : x
  2. Step 2: Convert to fraction form
    685,719.03/1,028,646.17 = 236,380.75/x
  3. Step 3: Cross multiply
    685,719.03x = 1,028,646.17 × 236,380.75
  4. Step 4: Simplify right side
    685,719.03x = 243,152,150,282.14
  5. Step 5: Solve for x
    x = 243,152,150,282.14/685,719.03
  6. Step 6: Final answer
    x = 354,594.43

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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.