Home / 639,089.40-958,634.10-537,612.60

Finding the Fourth Proportional to 639,089.40, 958,634.10 and 537,612.60

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Solution

The fourth proportional to 639,089.40, 958,634.10 and 537,612.60 is: 806,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,089.40 : 958,634.10 = 537,612.60 : x
  2. Step 2: Convert to fraction form
    639,089.40/958,634.10 = 537,612.60/x
  3. Step 3: Cross multiply
    639,089.40x = 958,634.10 × 537,612.60
  4. Step 4: Simplify right side
    639,089.40x = 515,373,770,949.66
  5. Step 5: Solve for x
    x = 515,373,770,949.66/639,089.40
  6. Step 6: Final answer
    x = 806,418.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.