Home / 923,345.28-1,274,255-515,469.76

Finding the Fourth Proportional to 923,345.28, 1,274,255 and 515,469.76

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Solution

The fourth proportional to 923,345.28, 1,274,255 and 515,469.76 is: 711,369.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,345.28 : 1,274,255 = 515,469.76 : x
  2. Step 2: Convert to fraction form
    923,345.28/1,274,255 = 515,469.76/x
  3. Step 3: Cross multiply
    923,345.28x = 1,274,255 × 515,469.76
  4. Step 4: Simplify right side
    923,345.28x = 656,839,919,028.80
  5. Step 5: Solve for x
    x = 656,839,919,028.80/923,345.28
  6. Step 6: Final answer
    x = 711,369.77

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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.