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Finding the Fourth Proportional to 371,791.25, 513,075.15 and 202,025.37

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Solution

The fourth proportional to 371,791.25, 513,075.15 and 202,025.37 is: 278,796.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,791.25 : 513,075.15 = 202,025.37 : x
  2. Step 2: Convert to fraction form
    371,791.25/513,075.15 = 202,025.37/x
  3. Step 3: Cross multiply
    371,791.25x = 513,075.15 × 202,025.37
  4. Step 4: Simplify right side
    371,791.25x = 103,654,196,006.43
  5. Step 5: Solve for x
    x = 103,654,196,006.43/371,791.25
  6. Step 6: Final answer
    x = 278,796.76

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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.