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Finding the Fourth Proportional to 571,686.72, 857,659.68 and 197,712.96

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Solution

The fourth proportional to 571,686.72, 857,659.68 and 197,712.96 is: 296,614.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,686.72 : 857,659.68 = 197,712.96 : x
  2. Step 2: Convert to fraction form
    571,686.72/857,659.68 = 197,712.96/x
  3. Step 3: Cross multiply
    571,686.72x = 857,659.68 × 197,712.96
  4. Step 4: Simplify right side
    571,686.72x = 169,570,434,005.45
  5. Step 5: Solve for x
    x = 169,570,434,005.45/571,686.72
  6. Step 6: Final answer
    x = 296,614.26

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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.