Home / 1,920,252.42-2,878,356.87-640,517.22

Finding the Fourth Proportional to 1,920,252.42, 2,878,356.87 and 640,517.22

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Solution

The fourth proportional to 1,920,252.42, 2,878,356.87 and 640,517.22 is: 960,101.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,252.42 : 2,878,356.87 = 640,517.22 : x
  2. Step 2: Convert to fraction form
    1,920,252.42/2,878,356.87 = 640,517.22/x
  3. Step 3: Cross multiply
    1,920,252.42x = 2,878,356.87 × 640,517.22
  4. Step 4: Simplify right side
    1,920,252.42x = 1,843,637,140,540.30
  5. Step 5: Solve for x
    x = 1,843,637,140,540.30/1,920,252.42
  6. Step 6: Final answer
    x = 960,101.45

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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.