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Finding the Fourth Proportional to 570,921.74, 856,402.06 and 271,247.66

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Solution

The fourth proportional to 570,921.74, 856,402.06 and 271,247.66 is: 406,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,921.74 : 856,402.06 = 271,247.66 : x
  2. Step 2: Convert to fraction form
    570,921.74/856,402.06 = 271,247.66/x
  3. Step 3: Cross multiply
    570,921.74x = 856,402.06 × 271,247.66
  4. Step 4: Simplify right side
    570,921.74x = 232,297,054,794.18
  5. Step 5: Solve for x
    x = 232,297,054,794.18/570,921.74
  6. Step 6: Final answer
    x = 406,880.73

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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.