Home / 809,205.60-1,213,808.40-557,263.20

Finding the Fourth Proportional to 809,205.60, 1,213,808.40 and 557,263.20

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Solution

The fourth proportional to 809,205.60, 1,213,808.40 and 557,263.20 is: 835,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,205.60 : 1,213,808.40 = 557,263.20 : x
  2. Step 2: Convert to fraction form
    809,205.60/1,213,808.40 = 557,263.20/x
  3. Step 3: Cross multiply
    809,205.60x = 1,213,808.40 × 557,263.20
  4. Step 4: Simplify right side
    809,205.60x = 676,410,753,170.88
  5. Step 5: Solve for x
    x = 676,410,753,170.88/809,205.60
  6. Step 6: Final answer
    x = 835,894.80

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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.