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Finding the Fourth Proportional to 324,188.72, 447,585.88 and 222,384.72

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Solution

The fourth proportional to 324,188.72, 447,585.88 and 222,384.72 is: 307,031.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,188.72 : 447,585.88 = 222,384.72 : x
  2. Step 2: Convert to fraction form
    324,188.72/447,585.88 = 222,384.72/x
  3. Step 3: Cross multiply
    324,188.72x = 447,585.88 × 222,384.72
  4. Step 4: Simplify right side
    324,188.72x = 99,536,260,599.75
  5. Step 5: Solve for x
    x = 99,536,260,599.75/324,188.72
  6. Step 6: Final answer
    x = 307,031.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.