Home / 638,541.28-957,165.14-414,044.11

Finding the Fourth Proportional to 638,541.28, 957,165.14 and 414,044.11

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Solution

The fourth proportional to 638,541.28, 957,165.14 and 414,044.11 is: 620,646.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,541.28 : 957,165.14 = 414,044.11 : x
  2. Step 2: Convert to fraction form
    638,541.28/957,165.14 = 414,044.11/x
  3. Step 3: Cross multiply
    638,541.28x = 957,165.14 × 414,044.11
  4. Step 4: Simplify right side
    638,541.28x = 396,308,586,444.11
  5. Step 5: Solve for x
    x = 396,308,586,444.11/638,541.28
  6. Step 6: Final answer
    x = 620,646.78

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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.