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Finding the Fourth Proportional to 627,962.17, 866,561.62 and 356,048.44

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Solution

The fourth proportional to 627,962.17, 866,561.62 and 356,048.44 is: 491,332.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,962.17 : 866,561.62 = 356,048.44 : x
  2. Step 2: Convert to fraction form
    627,962.17/866,561.62 = 356,048.44/x
  3. Step 3: Cross multiply
    627,962.17x = 866,561.62 × 356,048.44
  4. Step 4: Simplify right side
    627,962.17x = 308,537,912,964.87
  5. Step 5: Solve for x
    x = 308,537,912,964.87/627,962.17
  6. Step 6: Final answer
    x = 491,332.01

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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.