Home / 891,155.80-1,336,733.70-828,170.20

Finding the Fourth Proportional to 891,155.80, 1,336,733.70 and 828,170.20

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Solution

The fourth proportional to 891,155.80, 1,336,733.70 and 828,170.20 is: 1,242,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,155.80 : 1,336,733.70 = 828,170.20 : x
  2. Step 2: Convert to fraction form
    891,155.80/1,336,733.70 = 828,170.20/x
  3. Step 3: Cross multiply
    891,155.80x = 1,336,733.70 × 828,170.20
  4. Step 4: Simplify right side
    891,155.80x = 1,107,043,015,675.74
  5. Step 5: Solve for x
    x = 1,107,043,015,675.74/891,155.80
  6. Step 6: Final answer
    x = 1,242,255.30

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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.