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Finding the Fourth Proportional to 499,807.56, 689,733.72 and 273,453.06

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Solution

The fourth proportional to 499,807.56, 689,733.72 and 273,453.06 is: 377,364.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,807.56 : 689,733.72 = 273,453.06 : x
  2. Step 2: Convert to fraction form
    499,807.56/689,733.72 = 273,453.06/x
  3. Step 3: Cross multiply
    499,807.56x = 689,733.72 × 273,453.06
  4. Step 4: Simplify right side
    499,807.56x = 188,609,796,319.18
  5. Step 5: Solve for x
    x = 188,609,796,319.18/499,807.56
  6. Step 6: Final answer
    x = 377,364.83

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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.