Home / 1,185,680.32-1,636,239.82-641,814.43

Finding the Fourth Proportional to 1,185,680.32, 1,636,239.82 and 641,814.43

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Solution

The fourth proportional to 1,185,680.32, 1,636,239.82 and 641,814.43 is: 885,704.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,680.32 : 1,636,239.82 = 641,814.43 : x
  2. Step 2: Convert to fraction form
    1,185,680.32/1,636,239.82 = 641,814.43/x
  3. Step 3: Cross multiply
    1,185,680.32x = 1,636,239.82 × 641,814.43
  4. Step 4: Simplify right side
    1,185,680.32x = 1,050,162,327,416.60
  5. Step 5: Solve for x
    x = 1,050,162,327,416.60/1,185,680.32
  6. Step 6: Final answer
    x = 885,704.44

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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.