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Finding the Fourth Proportional to 371,090.25, 512,105.54 and 201,324.38

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Solution

The fourth proportional to 371,090.25, 512,105.54 and 201,324.38 is: 277,828.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,090.25 : 512,105.54 = 201,324.38 : x
  2. Step 2: Convert to fraction form
    371,090.25/512,105.54 = 201,324.38/x
  3. Step 3: Cross multiply
    371,090.25x = 512,105.54 × 201,324.38
  4. Step 4: Simplify right side
    371,090.25x = 103,099,330,335.07
  5. Step 5: Solve for x
    x = 103,099,330,335.07/371,090.25
  6. Step 6: Final answer
    x = 277,828.18

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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.