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Finding the Fourth Proportional to 311,115.52, 466,239.20 and 235,151.60

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Solution

The fourth proportional to 311,115.52, 466,239.20 and 235,151.60 is: 352,399.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,115.52 : 466,239.20 = 235,151.60 : x
  2. Step 2: Convert to fraction form
    311,115.52/466,239.20 = 235,151.60/x
  3. Step 3: Cross multiply
    311,115.52x = 466,239.20 × 235,151.60
  4. Step 4: Simplify right side
    311,115.52x = 109,636,893,862.72
  5. Step 5: Solve for x
    x = 109,636,893,862.72/311,115.52
  6. Step 6: Final answer
    x = 352,399.31

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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.