Home / 1,292,110.71-1,783,081.29-711,329.17

Finding the Fourth Proportional to 1,292,110.71, 1,783,081.29 and 711,329.17

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Solution

The fourth proportional to 1,292,110.71, 1,783,081.29 and 711,329.17 is: 981,616.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,110.71 : 1,783,081.29 = 711,329.17 : x
  2. Step 2: Convert to fraction form
    1,292,110.71/1,783,081.29 = 711,329.17/x
  3. Step 3: Cross multiply
    1,292,110.71x = 1,783,081.29 × 711,329.17
  4. Step 4: Simplify right side
    1,292,110.71x = 1,268,357,734,058.23
  5. Step 5: Solve for x
    x = 1,268,357,734,058.23/1,292,110.71
  6. Step 6: Final answer
    x = 981,616.92

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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.