Home / 941,871.68-1,300,067.52-640,240.64

Finding the Fourth Proportional to 941,871.68, 1,300,067.52 and 640,240.64

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Solution

The fourth proportional to 941,871.68, 1,300,067.52 and 640,240.64 is: 883,725.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,871.68 : 1,300,067.52 = 640,240.64 : x
  2. Step 2: Convert to fraction form
    941,871.68/1,300,067.52 = 640,240.64/x
  3. Step 3: Cross multiply
    941,871.68x = 1,300,067.52 × 640,240.64
  4. Step 4: Simplify right side
    941,871.68x = 832,356,061,048.01
  5. Step 5: Solve for x
    x = 832,356,061,048.01/941,871.68
  6. Step 6: Final answer
    x = 883,725.54

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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.