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Finding the Fourth Proportional to 475,972.53, 656,820.34 and 261,107.98

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Solution

The fourth proportional to 475,972.53, 656,820.34 and 261,107.98 is: 360,317.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,972.53 : 656,820.34 = 261,107.98 : x
  2. Step 2: Convert to fraction form
    475,972.53/656,820.34 = 261,107.98/x
  3. Step 3: Cross multiply
    475,972.53x = 656,820.34 × 261,107.98
  4. Step 4: Simplify right side
    475,972.53x = 171,501,033,221.55
  5. Step 5: Solve for x
    x = 171,501,033,221.55/475,972.53
  6. Step 6: Final answer
    x = 360,317.08

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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.