Home / 1,291,742.91-1,936,357.47-617,649.39

Finding the Fourth Proportional to 1,291,742.91, 1,936,357.47 and 617,649.39

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Solution

The fourth proportional to 1,291,742.91, 1,936,357.47 and 617,649.39 is: 925,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,742.91 : 1,936,357.47 = 617,649.39 : x
  2. Step 2: Convert to fraction form
    1,291,742.91/1,936,357.47 = 617,649.39/x
  3. Step 3: Cross multiply
    1,291,742.91x = 1,936,357.47 × 617,649.39
  4. Step 4: Simplify right side
    1,291,742.91x = 1,195,990,010,167.44
  5. Step 5: Solve for x
    x = 1,195,990,010,167.44/1,291,742.91
  6. Step 6: Final answer
    x = 925,873.10

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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.