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Finding the Fourth Proportional to 475,855.76, 656,723.09 and 261,037.69

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Solution

The fourth proportional to 475,855.76, 656,723.09 and 261,037.69 is: 360,255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,855.76 : 656,723.09 = 261,037.69 : x
  2. Step 2: Convert to fraction form
    475,855.76/656,723.09 = 261,037.69/x
  3. Step 3: Cross multiply
    475,855.76x = 656,723.09 × 261,037.69
  4. Step 4: Simplify right side
    475,855.76x = 171,429,477,394.05
  5. Step 5: Solve for x
    x = 171,429,477,394.05/475,855.76
  6. Step 6: Final answer
    x = 360,255.13

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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.