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Finding the Fourth Proportional to 570,574.90, 855,861.54 and 171,215.02

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Solution

The fourth proportional to 570,574.90, 855,861.54 and 171,215.02 is: 256,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,574.90 : 855,861.54 = 171,215.02 : x
  2. Step 2: Convert to fraction form
    570,574.90/855,861.54 = 171,215.02/x
  3. Step 3: Cross multiply
    570,574.90x = 855,861.54 × 171,215.02
  4. Step 4: Simplify right side
    570,574.90x = 146,536,350,688.33
  5. Step 5: Solve for x
    x = 146,536,350,688.33/570,574.90
  6. Step 6: Final answer
    x = 256,822.29

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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.