Home / 831,266.69-1,246,512.52-431,800.22

Finding the Fourth Proportional to 831,266.69, 1,246,512.52 and 431,800.22

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Solution

The fourth proportional to 831,266.69, 1,246,512.52 and 431,800.22 is: 647,499.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,266.69 : 1,246,512.52 = 431,800.22 : x
  2. Step 2: Convert to fraction form
    831,266.69/1,246,512.52 = 431,800.22/x
  3. Step 3: Cross multiply
    831,266.69x = 1,246,512.52 × 431,800.22
  4. Step 4: Simplify right side
    831,266.69x = 538,244,380,368.75
  5. Step 5: Solve for x
    x = 538,244,380,368.75/831,266.69
  6. Step 6: Final answer
    x = 647,499.04

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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.