Home / 2,929,111.05-4,042,128.11-1,639,997.57

Finding the Fourth Proportional to 2,929,111.05, 4,042,128.11 and 1,639,997.57

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Solution

The fourth proportional to 2,929,111.05, 4,042,128.11 and 1,639,997.57 is: 2,263,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929,111.05 : 4,042,128.11 = 1,639,997.57 : x
  2. Step 2: Convert to fraction form
    2,929,111.05/4,042,128.11 = 1,639,997.57/x
  3. Step 3: Cross multiply
    2,929,111.05x = 4,042,128.11 × 1,639,997.57
  4. Step 4: Simplify right side
    2,929,111.05x = 6,629,080,249,618.07
  5. Step 5: Solve for x
    x = 6,629,080,249,618.07/2,929,111.05
  6. Step 6: Final answer
    x = 2,263,171.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.