Home / 686,910.60-1,030,355.10-188,274.60

Finding the Fourth Proportional to 686,910.60, 1,030,355.10 and 188,274.60

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Solution

The fourth proportional to 686,910.60, 1,030,355.10 and 188,274.60 is: 282,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,910.60 : 1,030,355.10 = 188,274.60 : x
  2. Step 2: Convert to fraction form
    686,910.60/1,030,355.10 = 188,274.60/x
  3. Step 3: Cross multiply
    686,910.60x = 1,030,355.10 × 188,274.60
  4. Step 4: Simplify right side
    686,910.60x = 193,989,694,310.46
  5. Step 5: Solve for x
    x = 193,989,694,310.46/686,910.60
  6. Step 6: Final answer
    x = 282,408.94

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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.