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Finding the Fourth Proportional to 682,886.46, 942,435.50 and 377,021.76

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Solution

The fourth proportional to 682,886.46, 942,435.50 and 377,021.76 is: 520,318.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,886.46 : 942,435.50 = 377,021.76 : x
  2. Step 2: Convert to fraction form
    682,886.46/942,435.50 = 377,021.76/x
  3. Step 3: Cross multiply
    682,886.46x = 942,435.50 × 377,021.76
  4. Step 4: Simplify right side
    682,886.46x = 355,318,690,896.48
  5. Step 5: Solve for x
    x = 355,318,690,896.48/682,886.46
  6. Step 6: Final answer
    x = 520,318.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.