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Finding the Fourth Proportional to 609,129.16, 913,509.14 and 254,060.15

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Solution

The fourth proportional to 609,129.16, 913,509.14 and 254,060.15 is: 381,013.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,129.16 : 913,509.14 = 254,060.15 : x
  2. Step 2: Convert to fraction form
    609,129.16/913,509.14 = 254,060.15/x
  3. Step 3: Cross multiply
    609,129.16x = 913,509.14 × 254,060.15
  4. Step 4: Simplify right side
    609,129.16x = 232,086,264,726.01
  5. Step 5: Solve for x
    x = 232,086,264,726.01/609,129.16
  6. Step 6: Final answer
    x = 381,013.22

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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.