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Finding the Fourth Proportional to 548,083.89, 756,145.78 and 333,145.53

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Solution

The fourth proportional to 548,083.89, 756,145.78 and 333,145.53 is: 459,613.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,083.89 : 756,145.78 = 333,145.53 : x
  2. Step 2: Convert to fraction form
    548,083.89/756,145.78 = 333,145.53/x
  3. Step 3: Cross multiply
    548,083.89x = 756,145.78 × 333,145.53
  4. Step 4: Simplify right side
    548,083.89x = 251,906,586,635.36
  5. Step 5: Solve for x
    x = 251,906,586,635.36/548,083.89
  6. Step 6: Final answer
    x = 459,613.19

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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.