Home / 1,138,803.76-1,571,558.64-629,514.64

Finding the Fourth Proportional to 1,138,803.76, 1,571,558.64 and 629,514.64

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Solution

The fourth proportional to 1,138,803.76, 1,571,558.64 and 629,514.64 is: 868,735.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,803.76 : 1,571,558.64 = 629,514.64 : x
  2. Step 2: Convert to fraction form
    1,138,803.76/1,571,558.64 = 629,514.64/x
  3. Step 3: Cross multiply
    1,138,803.76x = 1,571,558.64 × 629,514.64
  4. Step 4: Simplify right side
    1,138,803.76x = 989,319,171,498.49
  5. Step 5: Solve for x
    x = 989,319,171,498.49/1,138,803.76
  6. Step 6: Final answer
    x = 868,735.43

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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.