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Finding the Fourth Proportional to 453,447.56, 680,061.86 and 133,512.46

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Solution

The fourth proportional to 453,447.56, 680,061.86 and 133,512.46 is: 200,236.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,447.56 : 680,061.86 = 133,512.46 : x
  2. Step 2: Convert to fraction form
    453,447.56/680,061.86 = 133,512.46/x
  3. Step 3: Cross multiply
    453,447.56x = 680,061.86 × 133,512.46
  4. Step 4: Simplify right side
    453,447.56x = 90,796,731,880.78
  5. Step 5: Solve for x
    x = 90,796,731,880.78/453,447.56
  6. Step 6: Final answer
    x = 200,236.45

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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.