Home / 809,059.20-1,213,588.80-557,116.80

Finding the Fourth Proportional to 809,059.20, 1,213,588.80 and 557,116.80

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Solution

The fourth proportional to 809,059.20, 1,213,588.80 and 557,116.80 is: 835,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,059.20 : 1,213,588.80 = 557,116.80 : x
  2. Step 2: Convert to fraction form
    809,059.20/1,213,588.80 = 557,116.80/x
  3. Step 3: Cross multiply
    809,059.20x = 1,213,588.80 × 557,116.80
  4. Step 4: Simplify right side
    809,059.20x = 676,110,708,771.84
  5. Step 5: Solve for x
    x = 676,110,708,771.84/809,059.20
  6. Step 6: Final answer
    x = 835,675.20

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Half scale
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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.