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Finding the Fourth Proportional to 323,279.18, 484,977.59 and 133,636.55

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Solution

The fourth proportional to 323,279.18, 484,977.59 and 133,636.55 is: 200,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,279.18 : 484,977.59 = 133,636.55 : x
  2. Step 2: Convert to fraction form
    323,279.18/484,977.59 = 133,636.55/x
  3. Step 3: Cross multiply
    323,279.18x = 484,977.59 × 133,636.55
  4. Step 4: Simplify right side
    323,279.18x = 64,810,731,344.57
  5. Step 5: Solve for x
    x = 64,810,731,344.57/323,279.18
  6. Step 6: Final answer
    x = 200,479.14

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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.