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Finding the Fourth Proportional to 570,174.60, 854,937.90 and 215,200.20

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Solution

The fourth proportional to 570,174.60, 854,937.90 and 215,200.20 is: 322,678.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,174.60 : 854,937.90 = 215,200.20 : x
  2. Step 2: Convert to fraction form
    570,174.60/854,937.90 = 215,200.20/x
  3. Step 3: Cross multiply
    570,174.60x = 854,937.90 × 215,200.20
  4. Step 4: Simplify right side
    570,174.60x = 183,982,807,067.58
  5. Step 5: Solve for x
    x = 183,982,807,067.58/570,174.60
  6. Step 6: Final answer
    x = 322,678.01

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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.