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Finding the Fourth Proportional to 571,642.31, 857,463.47 and 197,665.31

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Solution

The fourth proportional to 571,642.31, 857,463.47 and 197,665.31 is: 296,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,642.31 : 857,463.47 = 197,665.31 : x
  2. Step 2: Convert to fraction form
    571,642.31/857,463.47 = 197,665.31/x
  3. Step 3: Cross multiply
    571,642.31x = 857,463.47 × 197,665.31
  4. Step 4: Simplify right side
    571,642.31x = 169,490,784,507.80
  5. Step 5: Solve for x
    x = 169,490,784,507.80/571,642.31
  6. Step 6: Final answer
    x = 296,497.97

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Double scale
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Similar ratio
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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.