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Finding the Fourth Proportional to 499,384.48, 689,150.48 and 273,029.92

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Solution

The fourth proportional to 499,384.48, 689,150.48 and 273,029.92 is: 376,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,384.48 : 689,150.48 = 273,029.92 : x
  2. Step 2: Convert to fraction form
    499,384.48/689,150.48 = 273,029.92/x
  3. Step 3: Cross multiply
    499,384.48x = 689,150.48 × 273,029.92
  4. Step 4: Simplify right side
    499,384.48x = 188,158,700,422.36
  5. Step 5: Solve for x
    x = 188,158,700,422.36/499,384.48
  6. Step 6: Final answer
    x = 376,781.23

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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.