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Finding the Fourth Proportional to 407,577.17, 611,169.12 and 170,856.29

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Solution

The fourth proportional to 407,577.17, 611,169.12 and 170,856.29 is: 256,202.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,577.17 : 611,169.12 = 170,856.29 : x
  2. Step 2: Convert to fraction form
    407,577.17/611,169.12 = 170,856.29/x
  3. Step 3: Cross multiply
    407,577.17x = 611,169.12 × 170,856.29
  4. Step 4: Simplify right side
    407,577.17x = 104,422,088,405.77
  5. Step 5: Solve for x
    x = 104,422,088,405.77/407,577.17
  6. Step 6: Final answer
    x = 256,202.01

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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.