Home / 640,789.32-883,872.66-410,982.60

Finding the Fourth Proportional to 640,789.32, 883,872.66 and 410,982.60

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Solution

The fourth proportional to 640,789.32, 883,872.66 and 410,982.60 is: 566,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,789.32 : 883,872.66 = 410,982.60 : x
  2. Step 2: Convert to fraction form
    640,789.32/883,872.66 = 410,982.60/x
  3. Step 3: Cross multiply
    640,789.32x = 883,872.66 × 410,982.60
  4. Step 4: Simplify right side
    640,789.32x = 363,256,283,875.72
  5. Step 5: Solve for x
    x = 363,256,283,875.72/640,789.32
  6. Step 6: Final answer
    x = 566,888.79

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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.