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Finding the Fourth Proportional to 455,613.30, 684,003.15 and 242,550.90

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Solution

The fourth proportional to 455,613.30, 684,003.15 and 242,550.90 is: 364,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,613.30 : 684,003.15 = 242,550.90 : x
  2. Step 2: Convert to fraction form
    455,613.30/684,003.15 = 242,550.90/x
  3. Step 3: Cross multiply
    455,613.30x = 684,003.15 × 242,550.90
  4. Step 4: Simplify right side
    455,613.30x = 165,905,579,635.34
  5. Step 5: Solve for x
    x = 165,905,579,635.34/455,613.30
  6. Step 6: Final answer
    x = 364,136.82

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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.