Home / 1,330,408.90-1,835,963.70-718,561.43

Finding the Fourth Proportional to 1,330,408.90, 1,835,963.70 and 718,561.43

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Solution

The fourth proportional to 1,330,408.90, 1,835,963.70 and 718,561.43 is: 991,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,408.90 : 1,835,963.70 = 718,561.43 : x
  2. Step 2: Convert to fraction form
    1,330,408.90/1,835,963.70 = 718,561.43/x
  3. Step 3: Cross multiply
    1,330,408.90x = 1,835,963.70 × 718,561.43
  4. Step 4: Simplify right side
    1,330,408.90x = 1,319,252,692,520.27
  5. Step 5: Solve for x
    x = 1,319,252,692,520.27/1,330,408.90
  6. Step 6: Final answer
    x = 991,614.46

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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.