Home / 836,997.12-1,155,042.32-455,033.52

Finding the Fourth Proportional to 836,997.12, 1,155,042.32 and 455,033.52

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Solution

The fourth proportional to 836,997.12, 1,155,042.32 and 455,033.52 is: 627,938.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,997.12 : 1,155,042.32 = 455,033.52 : x
  2. Step 2: Convert to fraction form
    836,997.12/1,155,042.32 = 455,033.52/x
  3. Step 3: Cross multiply
    836,997.12x = 1,155,042.32 × 455,033.52
  4. Step 4: Simplify right side
    836,997.12x = 525,582,972,618.57
  5. Step 5: Solve for x
    x = 525,582,972,618.57/836,997.12
  6. Step 6: Final answer
    x = 627,938.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.