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Finding the Fourth Proportional to 515,900.54, 773,150.90 and 291,149.84

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Solution

The fourth proportional to 515,900.54, 773,150.90 and 291,149.84 is: 436,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,900.54 : 773,150.90 = 291,149.84 : x
  2. Step 2: Convert to fraction form
    515,900.54/773,150.90 = 291,149.84/x
  3. Step 3: Cross multiply
    515,900.54x = 773,150.90 × 291,149.84
  4. Step 4: Simplify right side
    515,900.54x = 225,102,760,830.86
  5. Step 5: Solve for x
    x = 225,102,760,830.86/515,900.54
  6. Step 6: Final answer
    x = 436,329.76

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1.5x scale

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.