Home / 640,257.08-883,541.94-353,769.80

Finding the Fourth Proportional to 640,257.08, 883,541.94 and 353,769.80

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Solution

The fourth proportional to 640,257.08, 883,541.94 and 353,769.80 is: 488,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,257.08 : 883,541.94 = 353,769.80 : x
  2. Step 2: Convert to fraction form
    640,257.08/883,541.94 = 353,769.80/x
  3. Step 3: Cross multiply
    640,257.08x = 883,541.94 × 353,769.80
  4. Step 4: Simplify right side
    640,257.08x = 312,570,455,405.41
  5. Step 5: Solve for x
    x = 312,570,455,405.41/640,257.08
  6. Step 6: Final answer
    x = 488,195.23

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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.