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Finding the Fourth Proportional to 445,817.17, 615,227.70 and 254,834.70

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Solution

The fourth proportional to 445,817.17, 615,227.70 and 254,834.70 is: 351,671.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,817.17 : 615,227.70 = 254,834.70 : x
  2. Step 2: Convert to fraction form
    445,817.17/615,227.70 = 254,834.70/x
  3. Step 3: Cross multiply
    445,817.17x = 615,227.70 × 254,834.70
  4. Step 4: Simplify right side
    445,817.17x = 156,781,366,361.19
  5. Step 5: Solve for x
    x = 156,781,366,361.19/445,817.17
  6. Step 6: Final answer
    x = 351,671.89

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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.