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Finding the Fourth Proportional to 323,212.14, 484,592.94 and 143,199.72

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Solution

The fourth proportional to 323,212.14, 484,592.94 and 143,199.72 is: 214,699.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,212.14 : 484,592.94 = 143,199.72 : x
  2. Step 2: Convert to fraction form
    323,212.14/484,592.94 = 143,199.72/x
  3. Step 3: Cross multiply
    323,212.14x = 484,592.94 × 143,199.72
  4. Step 4: Simplify right side
    323,212.14x = 69,393,573,321.98
  5. Step 5: Solve for x
    x = 69,393,573,321.98/323,212.14
  6. Step 6: Final answer
    x = 214,699.77

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1.5x scale

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.