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Finding the Fourth Proportional to 499,650.93, 749,762.07 and 211,439.87

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Solution

The fourth proportional to 499,650.93, 749,762.07 and 211,439.87 is: 317,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,650.93 : 749,762.07 = 211,439.87 : x
  2. Step 2: Convert to fraction form
    499,650.93/749,762.07 = 211,439.87/x
  3. Step 3: Cross multiply
    499,650.93x = 749,762.07 × 211,439.87
  4. Step 4: Simplify right side
    499,650.93x = 158,529,594,611.73
  5. Step 5: Solve for x
    x = 158,529,594,611.73/499,650.93
  6. Step 6: Final answer
    x = 317,280.70

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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.