Home / 805,168.20-1,111,119.66-442,584.30

Finding the Fourth Proportional to 805,168.20, 1,111,119.66 and 442,584.30

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Solution

The fourth proportional to 805,168.20, 1,111,119.66 and 442,584.30 is: 610,759.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,168.20 : 1,111,119.66 = 442,584.30 : x
  2. Step 2: Convert to fraction form
    805,168.20/1,111,119.66 = 442,584.30/x
  3. Step 3: Cross multiply
    805,168.20x = 1,111,119.66 × 442,584.30
  4. Step 4: Simplify right side
    805,168.20x = 491,764,116,937.34
  5. Step 5: Solve for x
    x = 491,764,116,937.34/805,168.20
  6. Step 6: Final answer
    x = 610,759.49

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.