Home / 1,707,618.78-2,561,428.15-642,899.70

Finding the Fourth Proportional to 1,707,618.78, 2,561,428.15 and 642,899.70

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Solution

The fourth proportional to 1,707,618.78, 2,561,428.15 and 642,899.70 is: 964,349.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707,618.78 : 2,561,428.15 = 642,899.70 : x
  2. Step 2: Convert to fraction form
    1,707,618.78/2,561,428.15 = 642,899.70/x
  3. Step 3: Cross multiply
    1,707,618.78x = 2,561,428.15 × 642,899.70
  4. Step 4: Simplify right side
    1,707,618.78x = 1,646,741,389,206.56
  5. Step 5: Solve for x
    x = 1,646,741,389,206.56/1,707,618.78
  6. Step 6: Final answer
    x = 964,349.54

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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.