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Finding the Fourth Proportional to 371,087.25, 512,101.40 and 201,321.38

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Solution

The fourth proportional to 371,087.25, 512,101.40 and 201,321.38 is: 277,824.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,087.25 : 512,101.40 = 201,321.38 : x
  2. Step 2: Convert to fraction form
    371,087.25/512,101.40 = 201,321.38/x
  3. Step 3: Cross multiply
    371,087.25x = 512,101.40 × 201,321.38
  4. Step 4: Simplify right side
    371,087.25x = 103,096,956,980.82
  5. Step 5: Solve for x
    x = 103,096,956,980.82/371,087.25
  6. Step 6: Final answer
    x = 277,824.03

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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.