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Finding the Fourth Proportional to 561,540.60, 841,916.39 and 196,712.96

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Solution

The fourth proportional to 561,540.60, 841,916.39 and 196,712.96 is: 294,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,540.60 : 841,916.39 = 196,712.96 : x
  2. Step 2: Convert to fraction form
    561,540.60/841,916.39 = 196,712.96/x
  3. Step 3: Cross multiply
    561,540.60x = 841,916.39 × 196,712.96
  4. Step 4: Simplify right side
    561,540.60x = 165,615,859,956.27
  5. Step 5: Solve for x
    x = 165,615,859,956.27/561,540.60
  6. Step 6: Final answer
    x = 294,931.23

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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.