Home / 930,880.20-1,396,320.30-830,496.90

Finding the Fourth Proportional to 930,880.20, 1,396,320.30 and 830,496.90

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Solution

The fourth proportional to 930,880.20, 1,396,320.30 and 830,496.90 is: 1,245,745.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,880.20 : 1,396,320.30 = 830,496.90 : x
  2. Step 2: Convert to fraction form
    930,880.20/1,396,320.30 = 830,496.90/x
  3. Step 3: Cross multiply
    930,880.20x = 1,396,320.30 × 830,496.90
  4. Step 4: Simplify right side
    930,880.20x = 1,159,639,680,557.07
  5. Step 5: Solve for x
    x = 1,159,639,680,557.07/930,880.20
  6. Step 6: Final answer
    x = 1,245,745.35

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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.