Home / 640,936.38-884,224.94-368,939.19

Finding the Fourth Proportional to 640,936.38, 884,224.94 and 368,939.19

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Solution

The fourth proportional to 640,936.38, 884,224.94 and 368,939.19 is: 508,982.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,936.38 : 884,224.94 = 368,939.19 : x
  2. Step 2: Convert to fraction form
    640,936.38/884,224.94 = 368,939.19/x
  3. Step 3: Cross multiply
    640,936.38x = 884,224.94 × 368,939.19
  4. Step 4: Simplify right side
    640,936.38x = 326,225,228,720.27
  5. Step 5: Solve for x
    x = 326,225,228,720.27/640,936.38
  6. Step 6: Final answer
    x = 508,982.24

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1.5x scale

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.