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Finding the Fourth Proportional to 570,086.70, 854,595.45 and 215,339.10

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Solution

The fourth proportional to 570,086.70, 854,595.45 and 215,339.10 is: 322,806.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,086.70 : 854,595.45 = 215,339.10 : x
  2. Step 2: Convert to fraction form
    570,086.70/854,595.45 = 215,339.10/x
  3. Step 3: Cross multiply
    570,086.70x = 854,595.45 × 215,339.10
  4. Step 4: Simplify right side
    570,086.70x = 184,027,815,067.10
  5. Step 5: Solve for x
    x = 184,027,815,067.10/570,086.70
  6. Step 6: Final answer
    x = 322,806.72

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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.