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Finding the Fourth Proportional to 595,167.54, 821,461.98 and 391,237.30

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Solution

The fourth proportional to 595,167.54, 821,461.98 and 391,237.30 is: 539,993.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,167.54 : 821,461.98 = 391,237.30 : x
  2. Step 2: Convert to fraction form
    595,167.54/821,461.98 = 391,237.30/x
  3. Step 3: Cross multiply
    595,167.54x = 821,461.98 × 391,237.30
  4. Step 4: Simplify right side
    595,167.54x = 321,386,567,107.85
  5. Step 5: Solve for x
    x = 321,386,567,107.85/595,167.54
  6. Step 6: Final answer
    x = 539,993.44

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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.