Home / 831,845.51-1,147,999.97-469,137.03

Finding the Fourth Proportional to 831,845.51, 1,147,999.97 and 469,137.03

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Solution

The fourth proportional to 831,845.51, 1,147,999.97 and 469,137.03 is: 647,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,845.51 : 1,147,999.97 = 469,137.03 : x
  2. Step 2: Convert to fraction form
    831,845.51/1,147,999.97 = 469,137.03/x
  3. Step 3: Cross multiply
    831,845.51x = 1,147,999.97 × 469,137.03
  4. Step 4: Simplify right side
    831,845.51x = 538,569,293,233.73
  5. Step 5: Solve for x
    x = 538,569,293,233.73/831,845.51
  6. Step 6: Final answer
    x = 647,439.08

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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.