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Finding the Fourth Proportional to 355,645.62, 533,844.40 and 347,614.02

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Solution

The fourth proportional to 355,645.62, 533,844.40 and 347,614.02 is: 521,788.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,645.62 : 533,844.40 = 347,614.02 : x
  2. Step 2: Convert to fraction form
    355,645.62/533,844.40 = 347,614.02/x
  3. Step 3: Cross multiply
    355,645.62x = 533,844.40 × 347,614.02
  4. Step 4: Simplify right side
    355,645.62x = 185,571,797,938.49
  5. Step 5: Solve for x
    x = 185,571,797,938.49/355,645.62
  6. Step 6: Final answer
    x = 521,788.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.