Home / 813,242.25-1,122,244.20-469,092.42

Finding the Fourth Proportional to 813,242.25, 1,122,244.20 and 469,092.42

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Solution

The fourth proportional to 813,242.25, 1,122,244.20 and 469,092.42 is: 647,330.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,242.25 : 1,122,244.20 = 469,092.42 : x
  2. Step 2: Convert to fraction form
    813,242.25/1,122,244.20 = 469,092.42/x
  3. Step 3: Cross multiply
    813,242.25x = 1,122,244.20 × 469,092.42
  4. Step 4: Simplify right side
    813,242.25x = 526,436,247,608.96
  5. Step 5: Solve for x
    x = 526,436,247,608.96/813,242.25
  6. Step 6: Final answer
    x = 647,330.17

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Double scale
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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.