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Finding the Fourth Proportional to 455,996.80, 629,271.48 and 252,060.40

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Solution

The fourth proportional to 455,996.80, 629,271.48 and 252,060.40 is: 347,841.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,996.80 : 629,271.48 = 252,060.40 : x
  2. Step 2: Convert to fraction form
    455,996.80/629,271.48 = 252,060.40/x
  3. Step 3: Cross multiply
    455,996.80x = 629,271.48 × 252,060.40
  4. Step 4: Simplify right side
    455,996.80x = 158,614,420,957.39
  5. Step 5: Solve for x
    x = 158,614,420,957.39/455,996.80
  6. Step 6: Final answer
    x = 347,841.08

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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.