Home / 1,186,190.44-1,636,956.18-642,338.44

Finding the Fourth Proportional to 1,186,190.44, 1,636,956.18 and 642,338.44

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Solution

The fourth proportional to 1,186,190.44, 1,636,956.18 and 642,338.44 is: 886,434.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,190.44 : 1,636,956.18 = 642,338.44 : x
  2. Step 2: Convert to fraction form
    1,186,190.44/1,636,956.18 = 642,338.44/x
  3. Step 3: Cross multiply
    1,186,190.44x = 1,636,956.18 × 642,338.44
  4. Step 4: Simplify right side
    1,186,190.44x = 1,051,479,879,009.56
  5. Step 5: Solve for x
    x = 1,051,479,879,009.56/1,186,190.44
  6. Step 6: Final answer
    x = 886,434.29

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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.