Home / 1,261,913.60-1,741,431.78-688,953.77

Finding the Fourth Proportional to 1,261,913.60, 1,741,431.78 and 688,953.77

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Solution

The fourth proportional to 1,261,913.60, 1,741,431.78 and 688,953.77 is: 950,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,913.60 : 1,741,431.78 = 688,953.77 : x
  2. Step 2: Convert to fraction form
    1,261,913.60/1,741,431.78 = 688,953.77/x
  3. Step 3: Cross multiply
    1,261,913.60x = 1,741,431.78 × 688,953.77
  4. Step 4: Simplify right side
    1,261,913.60x = 1,199,765,989,789.70
  5. Step 5: Solve for x
    x = 1,199,765,989,789.70/1,261,913.60
  6. Step 6: Final answer
    x = 950,751.30

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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.