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Finding the Fourth Proportional to 339,969.20, 510,148.20 and 234,863.60

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Solution

The fourth proportional to 339,969.20, 510,148.20 and 234,863.60 is: 352,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,969.20 : 510,148.20 = 234,863.60 : x
  2. Step 2: Convert to fraction form
    339,969.20/510,148.20 = 234,863.60/x
  3. Step 3: Cross multiply
    339,969.20x = 510,148.20 × 234,863.60
  4. Step 4: Simplify right side
    339,969.20x = 119,815,242,785.52
  5. Step 5: Solve for x
    x = 119,815,242,785.52/339,969.20
  6. Step 6: Final answer
    x = 352,429.70

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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.