Home / 1,115,135.56-1,538,857.11-656,277.13

Finding the Fourth Proportional to 1,115,135.56, 1,538,857.11 and 656,277.13

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Solution

The fourth proportional to 1,115,135.56, 1,538,857.11 and 656,277.13 is: 905,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,135.56 : 1,538,857.11 = 656,277.13 : x
  2. Step 2: Convert to fraction form
    1,115,135.56/1,538,857.11 = 656,277.13/x
  3. Step 3: Cross multiply
    1,115,135.56x = 1,538,857.11 × 656,277.13
  4. Step 4: Simplify right side
    1,115,135.56x = 1,009,916,719,936.61
  5. Step 5: Solve for x
    x = 1,009,916,719,936.61/1,115,135.56
  6. Step 6: Final answer
    x = 905,644.80

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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.