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Finding the Fourth Proportional to 455,953.42, 629,196.14 and 251,993.80

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Solution

The fourth proportional to 455,953.42, 629,196.14 and 251,993.80 is: 347,740.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,953.42 : 629,196.14 = 251,993.80 : x
  2. Step 2: Convert to fraction form
    455,953.42/629,196.14 = 251,993.80/x
  3. Step 3: Cross multiply
    455,953.42x = 629,196.14 × 251,993.80
  4. Step 4: Simplify right side
    455,953.42x = 158,553,526,263.93
  5. Step 5: Solve for x
    x = 158,553,526,263.93/455,953.42
  6. Step 6: Final answer
    x = 347,740.62

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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.