Home / 638,132.10-957,198.15-401,936.10

Finding the Fourth Proportional to 638,132.10, 957,198.15 and 401,936.10

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Solution

The fourth proportional to 638,132.10, 957,198.15 and 401,936.10 is: 602,904.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,132.10 : 957,198.15 = 401,936.10 : x
  2. Step 2: Convert to fraction form
    638,132.10/957,198.15 = 401,936.10/x
  3. Step 3: Cross multiply
    638,132.10x = 957,198.15 × 401,936.10
  4. Step 4: Simplify right side
    638,132.10x = 384,732,491,338.22
  5. Step 5: Solve for x
    x = 384,732,491,338.22/638,132.10
  6. Step 6: Final answer
    x = 602,904.15

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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.