Home / 910,821.60-1,366,232.40-279,766.80

Finding the Fourth Proportional to 910,821.60, 1,366,232.40 and 279,766.80

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Solution

The fourth proportional to 910,821.60, 1,366,232.40 and 279,766.80 is: 419,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,821.60 : 1,366,232.40 = 279,766.80 : x
  2. Step 2: Convert to fraction form
    910,821.60/1,366,232.40 = 279,766.80/x
  3. Step 3: Cross multiply
    910,821.60x = 1,366,232.40 × 279,766.80
  4. Step 4: Simplify right side
    910,821.60x = 382,226,466,604.32
  5. Step 5: Solve for x
    x = 382,226,466,604.32/910,821.60
  6. Step 6: Final answer
    x = 419,650.20

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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.