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Finding the Fourth Proportional to 351,431.12, 484,983.24 and 200,542.16

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Solution

The fourth proportional to 351,431.12, 484,983.24 and 200,542.16 is: 276,752.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,431.12 : 484,983.24 = 200,542.16 : x
  2. Step 2: Convert to fraction form
    351,431.12/484,983.24 = 200,542.16/x
  3. Step 3: Cross multiply
    351,431.12x = 484,983.24 × 200,542.16
  4. Step 4: Simplify right side
    351,431.12x = 97,259,586,513.40
  5. Step 5: Solve for x
    x = 97,259,586,513.40/351,431.12
  6. Step 6: Final answer
    x = 276,752.91

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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.