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Finding the Fourth Proportional to 352,223.60, 527,644.20 and 211,564.40

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Solution

The fourth proportional to 352,223.60, 527,644.20 and 211,564.40 is: 316,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,223.60 : 527,644.20 = 211,564.40 : x
  2. Step 2: Convert to fraction form
    352,223.60/527,644.20 = 211,564.40/x
  3. Step 3: Cross multiply
    352,223.60x = 527,644.20 × 211,564.40
  4. Step 4: Simplify right side
    352,223.60x = 111,630,728,586.48
  5. Step 5: Solve for x
    x = 111,630,728,586.48/352,223.60
  6. Step 6: Final answer
    x = 316,931.43

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1.5x scale

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.