Home / 783,866.57-1,081,966.10-511,976.03

Finding the Fourth Proportional to 783,866.57, 1,081,966.10 and 511,976.03

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Solution

The fourth proportional to 783,866.57, 1,081,966.10 and 511,976.03 is: 706,677.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,866.57 : 1,081,966.10 = 511,976.03 : x
  2. Step 2: Convert to fraction form
    783,866.57/1,081,966.10 = 511,976.03/x
  3. Step 3: Cross multiply
    783,866.57x = 1,081,966.10 × 511,976.03
  4. Step 4: Simplify right side
    783,866.57x = 553,940,700,502.87
  5. Step 5: Solve for x
    x = 553,940,700,502.87/783,866.57
  6. Step 6: Final answer
    x = 706,677.29

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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.