Home / 1,288,401.13-1,932,172.52-519,700.30

Finding the Fourth Proportional to 1,288,401.13, 1,932,172.52 and 519,700.30

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Solution

The fourth proportional to 1,288,401.13, 1,932,172.52 and 519,700.30 is: 779,377.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,401.13 : 1,932,172.52 = 519,700.30 : x
  2. Step 2: Convert to fraction form
    1,288,401.13/1,932,172.52 = 519,700.30/x
  3. Step 3: Cross multiply
    1,288,401.13x = 1,932,172.52 × 519,700.30
  4. Step 4: Simplify right side
    1,288,401.13x = 1,004,150,630,866.82
  5. Step 5: Solve for x
    x = 1,004,150,630,866.82/1,288,401.13
  6. Step 6: Final answer
    x = 779,377.33

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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.