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Finding the Fourth Proportional to 619,750.46, 929,620.83 and 409,338.38

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Solution

The fourth proportional to 619,750.46, 929,620.83 and 409,338.38 is: 614,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,750.46 : 929,620.83 = 409,338.38 : x
  2. Step 2: Convert to fraction form
    619,750.46/929,620.83 = 409,338.38/x
  3. Step 3: Cross multiply
    619,750.46x = 929,620.83 × 409,338.38
  4. Step 4: Simplify right side
    619,750.46x = 380,529,484,566.46
  5. Step 5: Solve for x
    x = 380,529,484,566.46/619,750.46
  6. Step 6: Final answer
    x = 614,004.36

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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.