Home / 813,652.87-1,122,907.26-451,190.38

Finding the Fourth Proportional to 813,652.87, 1,122,907.26 and 451,190.38

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Solution

The fourth proportional to 813,652.87, 1,122,907.26 and 451,190.38 is: 622,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,652.87 : 1,122,907.26 = 451,190.38 : x
  2. Step 2: Convert to fraction form
    813,652.87/1,122,907.26 = 451,190.38/x
  3. Step 3: Cross multiply
    813,652.87x = 1,122,907.26 × 451,190.38
  4. Step 4: Simplify right side
    813,652.87x = 506,644,953,344.16
  5. Step 5: Solve for x
    x = 506,644,953,344.16/813,652.87
  6. Step 6: Final answer
    x = 622,679.49

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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.