Home / 1,605,200.79-2,215,195.11-916,963.77

Finding the Fourth Proportional to 1,605,200.79, 2,215,195.11 and 916,963.77

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Solution

The fourth proportional to 1,605,200.79, 2,215,195.11 and 916,963.77 is: 1,265,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,200.79 : 2,215,195.11 = 916,963.77 : x
  2. Step 2: Convert to fraction form
    1,605,200.79/2,215,195.11 = 916,963.77/x
  3. Step 3: Cross multiply
    1,605,200.79x = 2,215,195.11 × 916,963.77
  4. Step 4: Simplify right side
    1,605,200.79x = 2,031,253,659,351.16
  5. Step 5: Solve for x
    x = 2,031,253,659,351.16/1,605,200.79
  6. Step 6: Final answer
    x = 1,265,420.30

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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.