Home / 638,360.82-957,681.27-189,116.80

Finding the Fourth Proportional to 638,360.82, 957,681.27 and 189,116.80

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Solution

The fourth proportional to 638,360.82, 957,681.27 and 189,116.80 is: 283,716.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,360.82 : 957,681.27 = 189,116.80 : x
  2. Step 2: Convert to fraction form
    638,360.82/957,681.27 = 189,116.80/x
  3. Step 3: Cross multiply
    638,360.82x = 957,681.27 × 189,116.80
  4. Step 4: Simplify right side
    638,360.82x = 181,113,614,808.13
  5. Step 5: Solve for x
    x = 181,113,614,808.13/638,360.82
  6. Step 6: Final answer
    x = 283,716.68

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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.