Home / 1,277,803.20-1,763,935.20-825,314.88

Finding the Fourth Proportional to 1,277,803.20, 1,763,935.20 and 825,314.88

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Solution

The fourth proportional to 1,277,803.20, 1,763,935.20 and 825,314.88 is: 1,139,300.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,803.20 : 1,763,935.20 = 825,314.88 : x
  2. Step 2: Convert to fraction form
    1,277,803.20/1,763,935.20 = 825,314.88/x
  3. Step 3: Cross multiply
    1,277,803.20x = 1,763,935.20 × 825,314.88
  4. Step 4: Simplify right side
    1,277,803.20x = 1,455,801,967,915.78
  5. Step 5: Solve for x
    x = 1,455,801,967,915.78/1,277,803.20
  6. Step 6: Final answer
    x = 1,139,300.61

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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.