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Finding the Fourth Proportional to 311,027.70, 466,541.55 and 211,494.90

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Solution

The fourth proportional to 311,027.70, 466,541.55 and 211,494.90 is: 317,242.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,027.70 : 466,541.55 = 211,494.90 : x
  2. Step 2: Convert to fraction form
    311,027.70/466,541.55 = 211,494.90/x
  3. Step 3: Cross multiply
    311,027.70x = 466,541.55 × 211,494.90
  4. Step 4: Simplify right side
    311,027.70x = 98,671,158,463.10
  5. Step 5: Solve for x
    x = 98,671,158,463.10/311,027.70
  6. Step 6: Final answer
    x = 317,242.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.