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Finding the Fourth Proportional to 323,767,835.60, 485,651,753.40 and 220,455,705.20

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Solution

The fourth proportional to 323,767,835.60, 485,651,753.40 and 220,455,705.20 is: 330,683,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,767,835.60 : 485,651,753.40 = 220,455,705.20 : x
  2. Step 2: Convert to fraction form
    323,767,835.60/485,651,753.40 = 220,455,705.20/x
  3. Step 3: Cross multiply
    323,767,835.60x = 485,651,753.40 × 220,455,705.20
  4. Step 4: Simplify right side
    323,767,835.60x = 107,064,699,777,413,488
  5. Step 5: Solve for x
    x = 107,064,699,777,413,488/323,767,835.60
  6. Step 6: Final answer
    x = 330,683,557.80

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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.