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Finding the Fourth Proportional to 355,087.53, 490,031.51 and 193,951.26

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Solution

The fourth proportional to 355,087.53, 490,031.51 and 193,951.26 is: 267,658.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,087.53 : 490,031.51 = 193,951.26 : x
  2. Step 2: Convert to fraction form
    355,087.53/490,031.51 = 193,951.26/x
  3. Step 3: Cross multiply
    355,087.53x = 490,031.51 × 193,951.26
  4. Step 4: Simplify right side
    355,087.53x = 95,042,227,834.45
  5. Step 5: Solve for x
    x = 95,042,227,834.45/355,087.53
  6. Step 6: Final answer
    x = 267,658.59

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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.