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Finding the Fourth Proportional to 507,610.50, 761,427.99 and 170,655.54

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Solution

The fourth proportional to 507,610.50, 761,427.99 and 170,655.54 is: 255,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,610.50 : 761,427.99 = 170,655.54 : x
  2. Step 2: Convert to fraction form
    507,610.50/761,427.99 = 170,655.54/x
  3. Step 3: Cross multiply
    507,610.50x = 761,427.99 × 170,655.54
  4. Step 4: Simplify right side
    507,610.50x = 129,941,904,804.57
  5. Step 5: Solve for x
    x = 129,941,904,804.57/507,610.50
  6. Step 6: Final answer
    x = 255,987.43

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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.