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Finding the Fourth Proportional to 762,306.40, 1,052,047.44 and 422,884

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Solution

The fourth proportional to 762,306.40, 1,052,047.44 and 422,884 is: 583,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,306.40 : 1,052,047.44 = 422,884 : x
  2. Step 2: Convert to fraction form
    762,306.40/1,052,047.44 = 422,884/x
  3. Step 3: Cross multiply
    762,306.40x = 1,052,047.44 × 422,884
  4. Step 4: Simplify right side
    762,306.40x = 444,894,029,616.96
  5. Step 5: Solve for x
    x = 444,894,029,616.96/762,306.40
  6. Step 6: Final answer
    x = 583,615.76

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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.