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Finding the Fourth Proportional to 619,937.36, 929,817.72 and 199,158.80

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Solution

The fourth proportional to 619,937.36, 929,817.72 and 199,158.80 is: 298,709.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,937.36 : 929,817.72 = 199,158.80 : x
  2. Step 2: Convert to fraction form
    619,937.36/929,817.72 = 199,158.80/x
  3. Step 3: Cross multiply
    619,937.36x = 929,817.72 × 199,158.80
  4. Step 4: Simplify right side
    619,937.36x = 185,181,381,333.94
  5. Step 5: Solve for x
    x = 185,181,381,333.94/619,937.36
  6. Step 6: Final answer
    x = 298,709.83

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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.