Home / 1,186,542.66-1,637,419-642,665.73

Finding the Fourth Proportional to 1,186,542.66, 1,637,419 and 642,665.73

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Solution

The fourth proportional to 1,186,542.66, 1,637,419 and 642,665.73 is: 886,873.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,542.66 : 1,637,419 = 642,665.73 : x
  2. Step 2: Convert to fraction form
    1,186,542.66/1,637,419 = 642,665.73/x
  3. Step 3: Cross multiply
    1,186,542.66x = 1,637,419 × 642,665.73
  4. Step 4: Simplify right side
    1,186,542.66x = 1,052,313,076,950.87
  5. Step 5: Solve for x
    x = 1,052,313,076,950.87/1,186,542.66
  6. Step 6: Final answer
    x = 886,873.36

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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.