Home / 1,288,987.36-1,933,677.60-657,556.72

Finding the Fourth Proportional to 1,288,987.36, 1,933,677.60 and 657,556.72

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Solution

The fourth proportional to 1,288,987.36, 1,933,677.60 and 657,556.72 is: 986,435.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,987.36 : 1,933,677.60 = 657,556.72 : x
  2. Step 2: Convert to fraction form
    1,288,987.36/1,933,677.60 = 657,556.72/x
  3. Step 3: Cross multiply
    1,288,987.36x = 1,933,677.60 × 657,556.72
  4. Step 4: Simplify right side
    1,288,987.36x = 1,271,502,700,193.47
  5. Step 5: Solve for x
    x = 1,271,502,700,193.47/1,288,987.36
  6. Step 6: Final answer
    x = 986,435.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.