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Finding the Fourth Proportional to 445,682.61, 615,084.03 and 254,658.96

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Solution

The fourth proportional to 445,682.61, 615,084.03 and 254,658.96 is: 351,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,682.61 : 615,084.03 = 254,658.96 : x
  2. Step 2: Convert to fraction form
    445,682.61/615,084.03 = 254,658.96/x
  3. Step 3: Cross multiply
    445,682.61x = 615,084.03 × 254,658.96
  4. Step 4: Simplify right side
    445,682.61x = 156,636,659,392.41
  5. Step 5: Solve for x
    x = 156,636,659,392.41/445,682.61
  6. Step 6: Final answer
    x = 351,453.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.