Home / 868,909.60-1,303,364.40-396,517.60

Finding the Fourth Proportional to 868,909.60, 1,303,364.40 and 396,517.60

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Solution

The fourth proportional to 868,909.60, 1,303,364.40 and 396,517.60 is: 594,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,909.60 : 1,303,364.40 = 396,517.60 : x
  2. Step 2: Convert to fraction form
    868,909.60/1,303,364.40 = 396,517.60/x
  3. Step 3: Cross multiply
    868,909.60x = 1,303,364.40 × 396,517.60
  4. Step 4: Simplify right side
    868,909.60x = 516,806,923,813.44
  5. Step 5: Solve for x
    x = 516,806,923,813.44/868,909.60
  6. Step 6: Final answer
    x = 594,776.40

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Double scale
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Similar ratio
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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.