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Finding the Third Proportional to 295,656.75 and 422,784

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Solution

The third proportional to 295,656.75 and 422,784 is: 604,573.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,656.75 : 422,784 = 422,784 : x
  2. Step 2: Convert to fraction form
    295,656.75/422,784 = 422,784/x
  3. Step 3: Cross multiply
    295,656.75x = 422,784 × 422,784
  4. Step 4: Simplify right side
    295,656.75x = 178,746,310,656
  5. Step 5: Solve for x
    x = 178,746,310,656/295,656.75
  6. Step 6: Final answer
    x = 604,573.75

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.