Home / 640,976.36-884,511.41-350,530.20

Finding the Fourth Proportional to 640,976.36, 884,511.41 and 350,530.20

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Solution

The fourth proportional to 640,976.36, 884,511.41 and 350,530.20 is: 483,712.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,976.36 : 884,511.41 = 350,530.20 : x
  2. Step 2: Convert to fraction form
    640,976.36/884,511.41 = 350,530.20/x
  3. Step 3: Cross multiply
    640,976.36x = 884,511.41 × 350,530.20
  4. Step 4: Simplify right side
    640,976.36x = 310,047,959,696.93
  5. Step 5: Solve for x
    x = 310,047,959,696.93/640,976.36
  6. Step 6: Final answer
    x = 483,712.01

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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.