Home / 878,879.29-1,212,862.92-516,318.43

Finding the Fourth Proportional to 878,879.29, 1,212,862.92 and 516,318.43

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Solution

The fourth proportional to 878,879.29, 1,212,862.92 and 516,318.43 is: 712,525.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,879.29 : 1,212,862.92 = 516,318.43 : x
  2. Step 2: Convert to fraction form
    878,879.29/1,212,862.92 = 516,318.43/x
  3. Step 3: Cross multiply
    878,879.29x = 1,212,862.92 × 516,318.43
  4. Step 4: Simplify right side
    878,879.29x = 626,223,478,659.62
  5. Step 5: Solve for x
    x = 626,223,478,659.62/878,879.29
  6. Step 6: Final answer
    x = 712,525.01

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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.