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Finding the Fourth Proportional to 382,015.66, 527,172.15 and 212,250.19

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Solution

The fourth proportional to 382,015.66, 527,172.15 and 212,250.19 is: 292,900.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,015.66 : 527,172.15 = 212,250.19 : x
  2. Step 2: Convert to fraction form
    382,015.66/527,172.15 = 212,250.19/x
  3. Step 3: Cross multiply
    382,015.66x = 527,172.15 × 212,250.19
  4. Step 4: Simplify right side
    382,015.66x = 111,892,389,000.21
  5. Step 5: Solve for x
    x = 111,892,389,000.21/382,015.66
  6. Step 6: Final answer
    x = 292,900.01

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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.