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Finding the Fourth Proportional to 594,690.26, 821,353.64 and 391,648.77

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Solution

The fourth proportional to 594,690.26, 821,353.64 and 391,648.77 is: 540,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,690.26 : 821,353.64 = 391,648.77 : x
  2. Step 2: Convert to fraction form
    594,690.26/821,353.64 = 391,648.77/x
  3. Step 3: Cross multiply
    594,690.26x = 821,353.64 × 391,648.77
  4. Step 4: Simplify right side
    594,690.26x = 321,682,140,882.78
  5. Step 5: Solve for x
    x = 321,682,140,882.78/594,690.26
  6. Step 6: Final answer
    x = 540,923.85

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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.