Home / 781,409.97-1,078,513.27-475,584.85

Finding the Fourth Proportional to 781,409.97, 1,078,513.27 and 475,584.85

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Solution

The fourth proportional to 781,409.97, 1,078,513.27 and 475,584.85 is: 656,409.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,409.97 : 1,078,513.27 = 475,584.85 : x
  2. Step 2: Convert to fraction form
    781,409.97/1,078,513.27 = 475,584.85/x
  3. Step 3: Cross multiply
    781,409.97x = 1,078,513.27 × 475,584.85
  4. Step 4: Simplify right side
    781,409.97x = 512,924,571,735.96
  5. Step 5: Solve for x
    x = 512,924,571,735.96/781,409.97
  6. Step 6: Final answer
    x = 656,409.04

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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.