Home / 868,560.50-1,303,104.13-419,197.61

Finding the Fourth Proportional to 868,560.50, 1,303,104.13 and 419,197.61

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Solution

The fourth proportional to 868,560.50, 1,303,104.13 and 419,197.61 is: 628,923.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,560.50 : 1,303,104.13 = 419,197.61 : x
  2. Step 2: Convert to fraction form
    868,560.50/1,303,104.13 = 419,197.61/x
  3. Step 3: Cross multiply
    868,560.50x = 1,303,104.13 × 419,197.61
  4. Step 4: Simplify right side
    868,560.50x = 546,258,129,313.62
  5. Step 5: Solve for x
    x = 546,258,129,313.62/868,560.50
  6. Step 6: Final answer
    x = 628,923.53

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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.