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Finding the Fourth Proportional to 256,591.56, 384,841.98 and 69,617.64

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Solution

The fourth proportional to 256,591.56, 384,841.98 and 69,617.64 is: 104,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,591.56 : 384,841.98 = 69,617.64 : x
  2. Step 2: Convert to fraction form
    256,591.56/384,841.98 = 69,617.64/x
  3. Step 3: Cross multiply
    256,591.56x = 384,841.98 × 69,617.64
  4. Step 4: Simplify right side
    256,591.56x = 26,791,790,420.53
  5. Step 5: Solve for x
    x = 26,791,790,420.53/256,591.56
  6. Step 6: Final answer
    x = 104,414.15

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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.