Home / 639,986.66-883,172.61-349,594.77

Finding the Fourth Proportional to 639,986.66, 883,172.61 and 349,594.77

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Solution

The fourth proportional to 639,986.66, 883,172.61 and 349,594.77 is: 482,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,986.66 : 883,172.61 = 349,594.77 : x
  2. Step 2: Convert to fraction form
    639,986.66/883,172.61 = 349,594.77/x
  3. Step 3: Cross multiply
    639,986.66x = 883,172.61 × 349,594.77
  4. Step 4: Simplify right side
    639,986.66x = 308,752,525,463.25
  5. Step 5: Solve for x
    x = 308,752,525,463.25/639,986.66
  6. Step 6: Final answer
    x = 482,435.88

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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.