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Finding the Fourth Proportional to 474,372.60, 711,792.60 and 221,670.48

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Solution

The fourth proportional to 474,372.60, 711,792.60 and 221,670.48 is: 332,614.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,372.60 : 711,792.60 = 221,670.48 : x
  2. Step 2: Convert to fraction form
    474,372.60/711,792.60 = 221,670.48/x
  3. Step 3: Cross multiply
    474,372.60x = 711,792.60 × 221,670.48
  4. Step 4: Simplify right side
    474,372.60x = 157,783,407,302.45
  5. Step 5: Solve for x
    x = 157,783,407,302.45/474,372.60
  6. Step 6: Final answer
    x = 332,614.93

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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.