Home / 783,926-1,081,786.56-461,649.68

Finding the Fourth Proportional to 783,926, 1,081,786.56 and 461,649.68

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Solution

The fourth proportional to 783,926, 1,081,786.56 and 461,649.68 is: 637,058.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,926 : 1,081,786.56 = 461,649.68 : x
  2. Step 2: Convert to fraction form
    783,926/1,081,786.56 = 461,649.68/x
  3. Step 3: Cross multiply
    783,926x = 1,081,786.56 × 461,649.68
  4. Step 4: Simplify right side
    783,926x = 499,406,419,252.30
  5. Step 5: Solve for x
    x = 499,406,419,252.30/783,926
  6. Step 6: Final answer
    x = 637,058.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.