Home / 1,288,114.03-1,777,677.60-715,163.77

Finding the Fourth Proportional to 1,288,114.03, 1,777,677.60 and 715,163.77

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Solution

The fourth proportional to 1,288,114.03, 1,777,677.60 and 715,163.77 is: 986,970.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,114.03 : 1,777,677.60 = 715,163.77 : x
  2. Step 2: Convert to fraction form
    1,288,114.03/1,777,677.60 = 715,163.77/x
  3. Step 3: Cross multiply
    1,288,114.03x = 1,777,677.60 × 715,163.77
  4. Step 4: Simplify right side
    1,288,114.03x = 1,271,330,614,260.55
  5. Step 5: Solve for x
    x = 1,271,330,614,260.55/1,288,114.03
  6. Step 6: Final answer
    x = 986,970.55

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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.