Home / 1,288,214.40-1,932,321.60-579,626.40

Finding the Fourth Proportional to 1,288,214.40, 1,932,321.60 and 579,626.40

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Solution

The fourth proportional to 1,288,214.40, 1,932,321.60 and 579,626.40 is: 869,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,214.40 : 1,932,321.60 = 579,626.40 : x
  2. Step 2: Convert to fraction form
    1,288,214.40/1,932,321.60 = 579,626.40/x
  3. Step 3: Cross multiply
    1,288,214.40x = 1,932,321.60 × 579,626.40
  4. Step 4: Simplify right side
    1,288,214.40x = 1,120,024,612,650.24
  5. Step 5: Solve for x
    x = 1,120,024,612,650.24/1,288,214.40
  6. Step 6: Final answer
    x = 869,439.60

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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.