Home / 783,859.82-1,081,956.76-511,969.28

Finding the Fourth Proportional to 783,859.82, 1,081,956.76 and 511,969.28

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Solution

The fourth proportional to 783,859.82, 1,081,956.76 and 511,969.28 is: 706,667.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,859.82 : 1,081,956.76 = 511,969.28 : x
  2. Step 2: Convert to fraction form
    783,859.82/1,081,956.76 = 511,969.28/x
  3. Step 3: Cross multiply
    783,859.82x = 1,081,956.76 × 511,969.28
  4. Step 4: Simplify right side
    783,859.82x = 553,928,616,718.63
  5. Step 5: Solve for x
    x = 553,928,616,718.63/783,859.82
  6. Step 6: Final answer
    x = 706,667.96

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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.