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Finding the Fourth Proportional to 382,361.10, 527,656.57 and 212,585.10

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Solution

The fourth proportional to 382,361.10, 527,656.57 and 212,585.10 is: 293,366.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,361.10 : 527,656.57 = 212,585.10 : x
  2. Step 2: Convert to fraction form
    382,361.10/527,656.57 = 212,585.10/x
  3. Step 3: Cross multiply
    382,361.10x = 527,656.57 × 212,585.10
  4. Step 4: Simplify right side
    382,361.10x = 112,171,924,699.11
  5. Step 5: Solve for x
    x = 112,171,924,699.11/382,361.10
  6. Step 6: Final answer
    x = 293,366.47

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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.