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Finding the Fourth Proportional to 570,058.70, 854,553.45 and 215,311.10

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Solution

The fourth proportional to 570,058.70, 854,553.45 and 215,311.10 is: 322,764.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,058.70 : 854,553.45 = 215,311.10 : x
  2. Step 2: Convert to fraction form
    570,058.70/854,553.45 = 215,311.10/x
  3. Step 3: Cross multiply
    570,058.70x = 854,553.45 × 215,311.10
  4. Step 4: Simplify right side
    570,058.70x = 183,994,843,328.30
  5. Step 5: Solve for x
    x = 183,994,843,328.30/570,058.70
  6. Step 6: Final answer
    x = 322,764.73

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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.