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Finding the Fourth Proportional to 341,728.20, 512,495.46 and 141,801.30

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Solution

The fourth proportional to 341,728.20, 512,495.46 and 141,801.30 is: 212,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,728.20 : 512,495.46 = 141,801.30 : x
  2. Step 2: Convert to fraction form
    341,728.20/512,495.46 = 141,801.30/x
  3. Step 3: Cross multiply
    341,728.20x = 512,495.46 × 141,801.30
  4. Step 4: Simplify right side
    341,728.20x = 72,672,522,472.10
  5. Step 5: Solve for x
    x = 72,672,522,472.10/341,728.20
  6. Step 6: Final answer
    x = 212,661.77

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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.