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Finding the Fourth Proportional to 627,715.48, 866,253 and 341,236.12

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Solution

The fourth proportional to 627,715.48, 866,253 and 341,236.12 is: 470,908.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,715.48 : 866,253 = 341,236.12 : x
  2. Step 2: Convert to fraction form
    627,715.48/866,253 = 341,236.12/x
  3. Step 3: Cross multiply
    627,715.48x = 866,253 × 341,236.12
  4. Step 4: Simplify right side
    627,715.48x = 295,596,812,658.36
  5. Step 5: Solve for x
    x = 295,596,812,658.36/627,715.48
  6. Step 6: Final answer
    x = 470,908.91

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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.