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Finding the Fourth Proportional to 499,817.16, 689,764.88 and 273,462.64

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Solution

The fourth proportional to 499,817.16, 689,764.88 and 273,462.64 is: 377,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,817.16 : 689,764.88 = 273,462.64 : x
  2. Step 2: Convert to fraction form
    499,817.16/689,764.88 = 273,462.64/x
  3. Step 3: Cross multiply
    499,817.16x = 689,764.88 × 273,462.64
  4. Step 4: Simplify right side
    499,817.16x = 188,624,925,064.08
  5. Step 5: Solve for x
    x = 188,624,925,064.08/499,817.16
  6. Step 6: Final answer
    x = 377,387.85

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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.