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Finding the Fourth Proportional to 548,239.93, 756,575.72 and 303,220.60

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Solution

The fourth proportional to 548,239.93, 756,575.72 and 303,220.60 is: 418,446.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,239.93 : 756,575.72 = 303,220.60 : x
  2. Step 2: Convert to fraction form
    548,239.93/756,575.72 = 303,220.60/x
  3. Step 3: Cross multiply
    548,239.93x = 756,575.72 × 303,220.60
  4. Step 4: Simplify right side
    548,239.93x = 229,409,342,247.73
  5. Step 5: Solve for x
    x = 229,409,342,247.73/548,239.93
  6. Step 6: Final answer
    x = 418,446.98

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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.