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Finding the Fourth Proportional to 552,900.53, 763,027.29 and 311,198.76

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Solution

The fourth proportional to 552,900.53, 763,027.29 and 311,198.76 is: 429,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,900.53 : 763,027.29 = 311,198.76 : x
  2. Step 2: Convert to fraction form
    552,900.53/763,027.29 = 311,198.76/x
  3. Step 3: Cross multiply
    552,900.53x = 763,027.29 × 311,198.76
  4. Step 4: Simplify right side
    552,900.53x = 237,453,146,494.16
  5. Step 5: Solve for x
    x = 237,453,146,494.16/552,900.53
  6. Step 6: Final answer
    x = 429,468.11

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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.