Home / 1,124,035.40-1,551,195.43-640,645.53

Finding the Fourth Proportional to 1,124,035.40, 1,551,195.43 and 640,645.53

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Solution

The fourth proportional to 1,124,035.40, 1,551,195.43 and 640,645.53 is: 884,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,035.40 : 1,551,195.43 = 640,645.53 : x
  2. Step 2: Convert to fraction form
    1,124,035.40/1,551,195.43 = 640,645.53/x
  3. Step 3: Cross multiply
    1,124,035.40x = 1,551,195.43 × 640,645.53
  4. Step 4: Simplify right side
    1,124,035.40x = 993,766,414,570.96
  5. Step 5: Solve for x
    x = 993,766,414,570.96/1,124,035.40
  6. Step 6: Final answer
    x = 884,105.97

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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.