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Finding the Fourth Proportional to 384,227.70, 576,341.55 and 378,322.80

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Solution

The fourth proportional to 384,227.70, 576,341.55 and 378,322.80 is: 567,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,227.70 : 576,341.55 = 378,322.80 : x
  2. Step 2: Convert to fraction form
    384,227.70/576,341.55 = 378,322.80/x
  3. Step 3: Cross multiply
    384,227.70x = 576,341.55 × 378,322.80
  4. Step 4: Simplify right side
    384,227.70x = 218,043,148,952.34
  5. Step 5: Solve for x
    x = 218,043,148,952.34/384,227.70
  6. Step 6: Final answer
    x = 567,484.20

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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.