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Finding the Fourth Proportional to 619,777.44, 927,672.93 and 319,849.41

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Solution

The fourth proportional to 619,777.44, 927,672.93 and 319,849.41 is: 478,745.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,777.44 : 927,672.93 = 319,849.41 : x
  2. Step 2: Convert to fraction form
    619,777.44/927,672.93 = 319,849.41/x
  3. Step 3: Cross multiply
    619,777.44x = 927,672.93 × 319,849.41
  4. Step 4: Simplify right side
    619,777.44x = 296,715,639,333.47
  5. Step 5: Solve for x
    x = 296,715,639,333.47/619,777.44
  6. Step 6: Final answer
    x = 478,745.47

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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.