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Finding the Fourth Proportional to 455,426.72, 627,097.60 and 412,707.32

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Solution

The fourth proportional to 455,426.72, 627,097.60 and 412,707.32 is: 568,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,426.72 : 627,097.60 = 412,707.32 : x
  2. Step 2: Convert to fraction form
    455,426.72/627,097.60 = 412,707.32/x
  3. Step 3: Cross multiply
    455,426.72x = 627,097.60 × 412,707.32
  4. Step 4: Simplify right side
    455,426.72x = 258,807,769,874.43
  5. Step 5: Solve for x
    x = 258,807,769,874.43/455,426.72
  6. Step 6: Final answer
    x = 568,275.33

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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.