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Finding the Fourth Proportional to 337,215.28, 505,386.84 and 252,309.28

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Solution

The fourth proportional to 337,215.28, 505,386.84 and 252,309.28 is: 378,137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,215.28 : 505,386.84 = 252,309.28 : x
  2. Step 2: Convert to fraction form
    337,215.28/505,386.84 = 252,309.28/x
  3. Step 3: Cross multiply
    337,215.28x = 505,386.84 × 252,309.28
  4. Step 4: Simplify right side
    337,215.28x = 127,513,789,721.88
  5. Step 5: Solve for x
    x = 127,513,789,721.88/337,215.28
  6. Step 6: Final answer
    x = 378,137.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.