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Finding the Fourth Proportional to 425,629.08, 636,866.59 and 341,132.97

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Solution

The fourth proportional to 425,629.08, 636,866.59 and 341,132.97 is: 510,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,629.08 : 636,866.59 = 341,132.97 : x
  2. Step 2: Convert to fraction form
    425,629.08/636,866.59 = 341,132.97/x
  3. Step 3: Cross multiply
    425,629.08x = 636,866.59 × 341,132.97
  4. Step 4: Simplify right side
    425,629.08x = 217,256,188,042.64
  5. Step 5: Solve for x
    x = 217,256,188,042.64/425,629.08
  6. Step 6: Final answer
    x = 510,435.49

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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.