Home / 694,314.42-1,040,126.55-393,886.20

Finding the Fourth Proportional to 694,314.42, 1,040,126.55 and 393,886.20

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Solution

The fourth proportional to 694,314.42, 1,040,126.55 and 393,886.20 is: 590,066.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,314.42 : 1,040,126.55 = 393,886.20 : x
  2. Step 2: Convert to fraction form
    694,314.42/1,040,126.55 = 393,886.20/x
  3. Step 3: Cross multiply
    694,314.42x = 1,040,126.55 × 393,886.20
  4. Step 4: Simplify right side
    694,314.42x = 409,691,494,298.61
  5. Step 5: Solve for x
    x = 409,691,494,298.61/694,314.42
  6. Step 6: Final answer
    x = 590,066.23

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Double scale
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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.