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Finding the Fourth Proportional to 407,577.76, 611,170.08 and 170,856.96

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Solution

The fourth proportional to 407,577.76, 611,170.08 and 170,856.96 is: 256,203.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,577.76 : 611,170.08 = 170,856.96 : x
  2. Step 2: Convert to fraction form
    407,577.76/611,170.08 = 170,856.96/x
  3. Step 3: Cross multiply
    407,577.76x = 611,170.08 × 170,856.96
  4. Step 4: Simplify right side
    407,577.76x = 104,422,661,911.76
  5. Step 5: Solve for x
    x = 104,422,661,911.76/407,577.76
  6. Step 6: Final answer
    x = 256,203.04

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1.5x scale

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.