Home / 1,099,656.11-1,517,500.77-640,742.11

Finding the Fourth Proportional to 1,099,656.11, 1,517,500.77 and 640,742.11

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Solution

The fourth proportional to 1,099,656.11, 1,517,500.77 and 640,742.11 is: 884,209.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,656.11 : 1,517,500.77 = 640,742.11 : x
  2. Step 2: Convert to fraction form
    1,099,656.11/1,517,500.77 = 640,742.11/x
  3. Step 3: Cross multiply
    1,099,656.11x = 1,517,500.77 × 640,742.11
  4. Step 4: Simplify right side
    1,099,656.11x = 972,326,639,099.89
  5. Step 5: Solve for x
    x = 972,326,639,099.89/1,099,656.11
  6. Step 6: Final answer
    x = 884,209.73

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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.