Home / 1,299,380.70-1,793,156.70-718,573.64

Finding the Fourth Proportional to 1,299,380.70, 1,793,156.70 and 718,573.64

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Solution

The fourth proportional to 1,299,380.70, 1,793,156.70 and 718,573.64 is: 991,637.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,380.70 : 1,793,156.70 = 718,573.64 : x
  2. Step 2: Convert to fraction form
    1,299,380.70/1,793,156.70 = 718,573.64/x
  3. Step 3: Cross multiply
    1,299,380.70x = 1,793,156.70 × 718,573.64
  4. Step 4: Simplify right side
    1,299,380.70x = 1,288,515,128,043.60
  5. Step 5: Solve for x
    x = 1,288,515,128,043.60/1,299,380.70
  6. Step 6: Final answer
    x = 991,637.88

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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.