Home / 1,186,063.96-1,636,761.38-642,188.52

Finding the Fourth Proportional to 1,186,063.96, 1,636,761.38 and 642,188.52

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Solution

The fourth proportional to 1,186,063.96, 1,636,761.38 and 642,188.52 is: 886,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,063.96 : 1,636,761.38 = 642,188.52 : x
  2. Step 2: Convert to fraction form
    1,186,063.96/1,636,761.38 = 642,188.52/x
  3. Step 3: Cross multiply
    1,186,063.96x = 1,636,761.38 × 642,188.52
  4. Step 4: Simplify right side
    1,186,063.96x = 1,051,109,368,215.36
  5. Step 5: Solve for x
    x = 1,051,109,368,215.36/1,186,063.96
  6. Step 6: Final answer
    x = 886,216.43

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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.