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Finding the Fourth Proportional to 455,903.44, 629,113.80 and 251,951.92

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Solution

The fourth proportional to 455,903.44, 629,113.80 and 251,951.92 is: 347,675.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,903.44 : 629,113.80 = 251,951.92 : x
  2. Step 2: Convert to fraction form
    455,903.44/629,113.80 = 251,951.92/x
  3. Step 3: Cross multiply
    455,903.44x = 629,113.80 × 251,951.92
  4. Step 4: Simplify right side
    455,903.44x = 158,506,429,808.50
  5. Step 5: Solve for x
    x = 158,506,429,808.50/455,903.44
  6. Step 6: Final answer
    x = 347,675.44

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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.