Home / 1,186,233.78-1,637,002.35-642,369.56

Finding the Fourth Proportional to 1,186,233.78, 1,637,002.35 and 642,369.56

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Solution

The fourth proportional to 1,186,233.78, 1,637,002.35 and 642,369.56 is: 886,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,233.78 : 1,637,002.35 = 642,369.56 : x
  2. Step 2: Convert to fraction form
    1,186,233.78/1,637,002.35 = 642,369.56/x
  3. Step 3: Cross multiply
    1,186,233.78x = 1,637,002.35 × 642,369.56
  4. Step 4: Simplify right side
    1,186,233.78x = 1,051,560,471,103.45
  5. Step 5: Solve for x
    x = 1,051,560,471,103.45/1,186,233.78
  6. Step 6: Final answer
    x = 886,469.84

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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.