Home / 767,513.40-1,151,166.42-206,581.56

Finding the Fourth Proportional to 767,513.40, 1,151,166.42 and 206,581.56

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Solution

The fourth proportional to 767,513.40, 1,151,166.42 and 206,581.56 is: 309,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,513.40 : 1,151,166.42 = 206,581.56 : x
  2. Step 2: Convert to fraction form
    767,513.40/1,151,166.42 = 206,581.56/x
  3. Step 3: Cross multiply
    767,513.40x = 1,151,166.42 × 206,581.56
  4. Step 4: Simplify right side
    767,513.40x = 237,809,754,863.22
  5. Step 5: Solve for x
    x = 237,809,754,863.22/767,513.40
  6. Step 6: Final answer
    x = 309,844.43

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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.