Home / 778,018.96-1,073,751.56-451,403.88

Finding the Fourth Proportional to 778,018.96, 1,073,751.56 and 451,403.88

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Solution

The fourth proportional to 778,018.96, 1,073,751.56 and 451,403.88 is: 622,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,018.96 : 1,073,751.56 = 451,403.88 : x
  2. Step 2: Convert to fraction form
    778,018.96/1,073,751.56 = 451,403.88/x
  3. Step 3: Cross multiply
    778,018.96x = 1,073,751.56 × 451,403.88
  4. Step 4: Simplify right side
    778,018.96x = 484,695,620,340.05
  5. Step 5: Solve for x
    x = 484,695,620,340.05/778,018.96
  6. Step 6: Final answer
    x = 622,986.90

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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.