Home / 1,185,776.49-1,636,369.67-641,912.13

Finding the Fourth Proportional to 1,185,776.49, 1,636,369.67 and 641,912.13

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Solution

The fourth proportional to 1,185,776.49, 1,636,369.67 and 641,912.13 is: 885,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,776.49 : 1,636,369.67 = 641,912.13 : x
  2. Step 2: Convert to fraction form
    1,185,776.49/1,636,369.67 = 641,912.13/x
  3. Step 3: Cross multiply
    1,185,776.49x = 1,636,369.67 × 641,912.13
  4. Step 4: Simplify right side
    1,185,776.49x = 1,050,405,537,127.54
  5. Step 5: Solve for x
    x = 1,050,405,537,127.54/1,185,776.49
  6. Step 6: Final answer
    x = 885,837.72

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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.