Home / 1,288,000.32-1,777,351.23-714,995.25

Finding the Fourth Proportional to 1,288,000.32, 1,777,351.23 and 714,995.25

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Solution

The fourth proportional to 1,288,000.32, 1,777,351.23 and 714,995.25 is: 986,643.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,000.32 : 1,777,351.23 = 714,995.25 : x
  2. Step 2: Convert to fraction form
    1,288,000.32/1,777,351.23 = 714,995.25/x
  3. Step 3: Cross multiply
    1,288,000.32x = 1,777,351.23 × 714,995.25
  4. Step 4: Simplify right side
    1,288,000.32x = 1,270,797,687,031.66
  5. Step 5: Solve for x
    x = 1,270,797,687,031.66/1,288,000.32
  6. Step 6: Final answer
    x = 986,643.92

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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.