Home / 831,938.82-1,147,976.78-469,341.51

Finding the Fourth Proportional to 831,938.82, 1,147,976.78 and 469,341.51

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Solution

The fourth proportional to 831,938.82, 1,147,976.78 and 469,341.51 is: 647,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,938.82 : 1,147,976.78 = 469,341.51 : x
  2. Step 2: Convert to fraction form
    831,938.82/1,147,976.78 = 469,341.51/x
  3. Step 3: Cross multiply
    831,938.82x = 1,147,976.78 × 469,341.51
  4. Step 4: Simplify right side
    831,938.82x = 538,793,153,023.43
  5. Step 5: Solve for x
    x = 538,793,153,023.43/831,938.82
  6. Step 6: Final answer
    x = 647,635.55

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Double scale
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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.