Home / 415,266.10-622,899.15-394,530.10

Finding the Fourth Proportional to 415,266.10, 622,899.15 and 394,530.10

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Solution

The fourth proportional to 415,266.10, 622,899.15 and 394,530.10 is: 591,795.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,266.10 : 622,899.15 = 394,530.10 : x
  2. Step 2: Convert to fraction form
    415,266.10/622,899.15 = 394,530.10/x
  3. Step 3: Cross multiply
    415,266.10x = 622,899.15 × 394,530.10
  4. Step 4: Simplify right side
    415,266.10x = 245,752,463,939.42
  5. Step 5: Solve for x
    x = 245,752,463,939.42/415,266.10
  6. Step 6: Final answer
    x = 591,795.15

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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.