Home / 1,288,180.68-1,777,744.85-715,220.88

Finding the Fourth Proportional to 1,288,180.68, 1,777,744.85 and 715,220.88

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Solution

The fourth proportional to 1,288,180.68, 1,777,744.85 and 715,220.88 is: 987,035.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,180.68 : 1,777,744.85 = 715,220.88 : x
  2. Step 2: Convert to fraction form
    1,288,180.68/1,777,744.85 = 715,220.88/x
  3. Step 3: Cross multiply
    1,288,180.68x = 1,777,744.85 × 715,220.88
  4. Step 4: Simplify right side
    1,288,180.68x = 1,271,480,236,032.47
  5. Step 5: Solve for x
    x = 1,271,480,236,032.47/1,288,180.68
  6. Step 6: Final answer
    x = 987,035.64

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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.