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Finding the Fourth Proportional to 607,643.29, 911,453.19 and 181,467.87

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Solution

The fourth proportional to 607,643.29, 911,453.19 and 181,467.87 is: 272,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,643.29 : 911,453.19 = 181,467.87 : x
  2. Step 2: Convert to fraction form
    607,643.29/911,453.19 = 181,467.87/x
  3. Step 3: Cross multiply
    607,643.29x = 911,453.19 × 181,467.87
  4. Step 4: Simplify right side
    607,643.29x = 165,399,468,994.01
  5. Step 5: Solve for x
    x = 165,399,468,994.01/607,643.29
  6. Step 6: Final answer
    x = 272,198.30

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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.