Home / 676,278.40-934,236.30-540,133.60

Finding the Fourth Proportional to 676,278.40, 934,236.30 and 540,133.60

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Solution

The fourth proportional to 676,278.40, 934,236.30 and 540,133.60 is: 746,160.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,278.40 : 934,236.30 = 540,133.60 : x
  2. Step 2: Convert to fraction form
    676,278.40/934,236.30 = 540,133.60/x
  3. Step 3: Cross multiply
    676,278.40x = 934,236.30 × 540,133.60
  4. Step 4: Simplify right side
    676,278.40x = 504,612,415,969.68
  5. Step 5: Solve for x
    x = 504,612,415,969.68/676,278.40
  6. Step 6: Final answer
    x = 746,160.78

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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.