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Finding the Fourth Proportional to 384,039.40, 576,059.10 and 218,151.40

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Solution

The fourth proportional to 384,039.40, 576,059.10 and 218,151.40 is: 327,227.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,039.40 : 576,059.10 = 218,151.40 : x
  2. Step 2: Convert to fraction form
    384,039.40/576,059.10 = 218,151.40/x
  3. Step 3: Cross multiply
    384,039.40x = 576,059.10 × 218,151.40
  4. Step 4: Simplify right side
    384,039.40x = 125,668,099,147.74
  5. Step 5: Solve for x
    x = 125,668,099,147.74/384,039.40
  6. Step 6: Final answer
    x = 327,227.10

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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.