Home / 1,186,493.32-1,637,350.86-642,616.48

Finding the Fourth Proportional to 1,186,493.32, 1,637,350.86 and 642,616.48

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Solution

The fourth proportional to 1,186,493.32, 1,637,350.86 and 642,616.48 is: 886,805.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,493.32 : 1,637,350.86 = 642,616.48 : x
  2. Step 2: Convert to fraction form
    1,186,493.32/1,637,350.86 = 642,616.48/x
  3. Step 3: Cross multiply
    1,186,493.32x = 1,637,350.86 × 642,616.48
  4. Step 4: Simplify right side
    1,186,493.32x = 1,052,188,646,178.17
  5. Step 5: Solve for x
    x = 1,052,188,646,178.17/1,186,493.32
  6. Step 6: Final answer
    x = 886,805.37

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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.