Home / 628,876.20-868,388.57-608,540.41

Finding the Fourth Proportional to 628,876.20, 868,388.57 and 608,540.41

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Solution

The fourth proportional to 628,876.20, 868,388.57 and 608,540.41 is: 840,307.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,876.20 : 868,388.57 = 608,540.41 : x
  2. Step 2: Convert to fraction form
    628,876.20/868,388.57 = 608,540.41/x
  3. Step 3: Cross multiply
    628,876.20x = 868,388.57 × 608,540.41
  4. Step 4: Simplify right side
    628,876.20x = 528,449,540,905.79
  5. Step 5: Solve for x
    x = 528,449,540,905.79/628,876.20
  6. Step 6: Final answer
    x = 840,307.74

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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.