Home / 842,114.40-1,161,989.04-479,553.12

Finding the Fourth Proportional to 842,114.40, 1,161,989.04 and 479,553.12

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Solution

The fourth proportional to 842,114.40, 1,161,989.04 and 479,553.12 is: 661,709.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,114.40 : 1,161,989.04 = 479,553.12 : x
  2. Step 2: Convert to fraction form
    842,114.40/1,161,989.04 = 479,553.12/x
  3. Step 3: Cross multiply
    842,114.40x = 1,161,989.04 × 479,553.12
  4. Step 4: Simplify right side
    842,114.40x = 557,235,469,537.81
  5. Step 5: Solve for x
    x = 557,235,469,537.81/842,114.40
  6. Step 6: Final answer
    x = 661,709.94

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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.