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Finding the Fourth Proportional to 481,051.08, 721,594.98 and 214,813.80

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Solution

The fourth proportional to 481,051.08, 721,594.98 and 214,813.80 is: 322,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,051.08 : 721,594.98 = 214,813.80 : x
  2. Step 2: Convert to fraction form
    481,051.08/721,594.98 = 214,813.80/x
  3. Step 3: Cross multiply
    481,051.08x = 721,594.98 × 214,813.80
  4. Step 4: Simplify right side
    481,051.08x = 155,008,559,714.72
  5. Step 5: Solve for x
    x = 155,008,559,714.72/481,051.08
  6. Step 6: Final answer
    x = 322,228.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.