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Finding the Fourth Proportional to 383,896.68, 529,773.90 and 211,816.23

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Solution

The fourth proportional to 383,896.68, 529,773.90 and 211,816.23 is: 292,304.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,896.68 : 529,773.90 = 211,816.23 : x
  2. Step 2: Convert to fraction form
    383,896.68/529,773.90 = 211,816.23/x
  3. Step 3: Cross multiply
    383,896.68x = 529,773.90 × 211,816.23
  4. Step 4: Simplify right side
    383,896.68x = 112,214,710,250.40
  5. Step 5: Solve for x
    x = 112,214,710,250.40/383,896.68
  6. Step 6: Final answer
    x = 292,304.46

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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.