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Finding the Fourth Proportional to 563,614.40, 777,843.52 and 321,933.12

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Solution

The fourth proportional to 563,614.40, 777,843.52 and 321,933.12 is: 444,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,614.40 : 777,843.52 = 321,933.12 : x
  2. Step 2: Convert to fraction form
    563,614.40/777,843.52 = 321,933.12/x
  3. Step 3: Cross multiply
    563,614.40x = 777,843.52 × 321,933.12
  4. Step 4: Simplify right side
    563,614.40x = 250,413,591,265.38
  5. Step 5: Solve for x
    x = 250,413,591,265.38/563,614.40
  6. Step 6: Final answer
    x = 444,299.49

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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.