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Finding the Fourth Proportional to 455,895.94, 629,103.45 and 251,944.42

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Solution

The fourth proportional to 455,895.94, 629,103.45 and 251,944.42 is: 347,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,895.94 : 629,103.45 = 251,944.42 : x
  2. Step 2: Convert to fraction form
    455,895.94/629,103.45 = 251,944.42/x
  3. Step 3: Cross multiply
    455,895.94x = 629,103.45 × 251,944.42
  4. Step 4: Simplify right side
    455,895.94x = 158,499,103,830.25
  5. Step 5: Solve for x
    x = 158,499,103,830.25/455,895.94
  6. Step 6: Final answer
    x = 347,665.09

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1.5x scale

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.