Home / 681,190.60-940,072.02-379,384.60

Finding the Fourth Proportional to 681,190.60, 940,072.02 and 379,384.60

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Solution

The fourth proportional to 681,190.60, 940,072.02 and 379,384.60 is: 523,566.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,190.60 : 940,072.02 = 379,384.60 : x
  2. Step 2: Convert to fraction form
    681,190.60/940,072.02 = 379,384.60/x
  3. Step 3: Cross multiply
    681,190.60x = 940,072.02 × 379,384.60
  4. Step 4: Simplify right side
    681,190.60x = 356,648,847,278.89
  5. Step 5: Solve for x
    x = 356,648,847,278.89/681,190.60
  6. Step 6: Final answer
    x = 523,566.89

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1.5x scale

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.