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Finding the Fourth Proportional to 571,361.36, 857,100.40 and 197,335.76

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Solution

The fourth proportional to 571,361.36, 857,100.40 and 197,335.76 is: 296,023.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,361.36 : 857,100.40 = 197,335.76 : x
  2. Step 2: Convert to fraction form
    571,361.36/857,100.40 = 197,335.76/x
  3. Step 3: Cross multiply
    571,361.36x = 857,100.40 × 197,335.76
  4. Step 4: Simplify right side
    571,361.36x = 169,136,558,830.30
  5. Step 5: Solve for x
    x = 169,136,558,830.30/571,361.36
  6. Step 6: Final answer
    x = 296,023.80

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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.