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Finding the Fourth Proportional to 351,313.75, 484,878.66 and 200,410.75

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Solution

The fourth proportional to 351,313.75, 484,878.66 and 200,410.75 is: 276,604.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,313.75 : 484,878.66 = 200,410.75 : x
  2. Step 2: Convert to fraction form
    351,313.75/484,878.66 = 200,410.75/x
  3. Step 3: Cross multiply
    351,313.75x = 484,878.66 × 200,410.75
  4. Step 4: Simplify right side
    351,313.75x = 97,174,895,909.60
  5. Step 5: Solve for x
    x = 97,174,895,909.60/351,313.75
  6. Step 6: Final answer
    x = 276,604.31

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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.