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Finding the Fourth Proportional to 377,856.05, 567,571.39 and 318,807.05

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Solution

The fourth proportional to 377,856.05, 567,571.39 and 318,807.05 is: 478,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,856.05 : 567,571.39 = 318,807.05 : x
  2. Step 2: Convert to fraction form
    377,856.05/567,571.39 = 318,807.05/x
  3. Step 3: Cross multiply
    377,856.05x = 567,571.39 × 318,807.05
  4. Step 4: Simplify right side
    377,856.05x = 180,945,756,875.43
  5. Step 5: Solve for x
    x = 180,945,756,875.43/377,856.05
  6. Step 6: Final answer
    x = 478,874.85

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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.