Home / 1,171,165.09-1,616,029.09-661,681.57

Finding the Fourth Proportional to 1,171,165.09, 1,616,029.09 and 661,681.57

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Solution

The fourth proportional to 1,171,165.09, 1,616,029.09 and 661,681.57 is: 913,019.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171,165.09 : 1,616,029.09 = 661,681.57 : x
  2. Step 2: Convert to fraction form
    1,171,165.09/1,616,029.09 = 661,681.57/x
  3. Step 3: Cross multiply
    1,171,165.09x = 1,616,029.09 × 661,681.57
  4. Step 4: Simplify right side
    1,171,165.09x = 1,069,296,665,436.87
  5. Step 5: Solve for x
    x = 1,069,296,665,436.87/1,171,165.09
  6. Step 6: Final answer
    x = 913,019.59

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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.