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Finding the Fourth Proportional to 499,767.64, 749,650.90 and 162,807.78

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Solution

The fourth proportional to 499,767.64, 749,650.90 and 162,807.78 is: 244,211.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,767.64 : 749,650.90 = 162,807.78 : x
  2. Step 2: Convert to fraction form
    499,767.64/749,650.90 = 162,807.78/x
  3. Step 3: Cross multiply
    499,767.64x = 749,650.90 × 162,807.78
  4. Step 4: Simplify right side
    499,767.64x = 122,048,998,804.00
  5. Step 5: Solve for x
    x = 122,048,998,804.00/499,767.64
  6. Step 6: Final answer
    x = 244,211.49

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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.