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Finding the Fourth Proportional to 455,326.38, 627,766.27 and 373,352.62

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Solution

The fourth proportional to 455,326.38, 627,766.27 and 373,352.62 is: 514,747.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,326.38 : 627,766.27 = 373,352.62 : x
  2. Step 2: Convert to fraction form
    455,326.38/627,766.27 = 373,352.62/x
  3. Step 3: Cross multiply
    455,326.38x = 627,766.27 × 373,352.62
  4. Step 4: Simplify right side
    455,326.38x = 234,378,181,652.13
  5. Step 5: Solve for x
    x = 234,378,181,652.13/455,326.38
  6. Step 6: Final answer
    x = 514,747.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.