Home / 819,086.85-1,229,183.85-286,612.50

Finding the Fourth Proportional to 819,086.85, 1,229,183.85 and 286,612.50

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Solution

The fourth proportional to 819,086.85, 1,229,183.85 and 286,612.50 is: 430,112.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,086.85 : 1,229,183.85 = 286,612.50 : x
  2. Step 2: Convert to fraction form
    819,086.85/1,229,183.85 = 286,612.50/x
  3. Step 3: Cross multiply
    819,086.85x = 1,229,183.85 × 286,612.50
  4. Step 4: Simplify right side
    819,086.85x = 352,299,456,208.13
  5. Step 5: Solve for x
    x = 352,299,456,208.13/819,086.85
  6. Step 6: Final answer
    x = 430,112.46

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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.