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Finding the Fourth Proportional to 323,592.12, 485,061.18 and 133,790.58

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Solution

The fourth proportional to 323,592.12, 485,061.18 and 133,790.58 is: 200,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,592.12 : 485,061.18 = 133,790.58 : x
  2. Step 2: Convert to fraction form
    323,592.12/485,061.18 = 133,790.58/x
  3. Step 3: Cross multiply
    323,592.12x = 485,061.18 × 133,790.58
  4. Step 4: Simplify right side
    323,592.12x = 64,896,616,607.68
  5. Step 5: Solve for x
    x = 64,896,616,607.68/323,592.12
  6. Step 6: Final answer
    x = 200,550.67

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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.