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Finding the Fourth Proportional to 570,576.90, 855,864.54 and 171,217.02

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Solution

The fourth proportional to 570,576.90, 855,864.54 and 171,217.02 is: 256,825.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,576.90 : 855,864.54 = 171,217.02 : x
  2. Step 2: Convert to fraction form
    570,576.90/855,864.54 = 171,217.02/x
  3. Step 3: Cross multiply
    570,576.90x = 855,864.54 × 171,217.02
  4. Step 4: Simplify right side
    570,576.90x = 146,538,576,062.47
  5. Step 5: Solve for x
    x = 146,538,576,062.47/570,576.90
  6. Step 6: Final answer
    x = 256,825.29

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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.