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Finding the Third Proportional to 393,880.22 and 625,269.38

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Solution

The third proportional to 393,880.22 and 625,269.38 is: 992,590.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,880.22 : 625,269.38 = 625,269.38 : x
  2. Step 2: Convert to fraction form
    393,880.22/625,269.38 = 625,269.38/x
  3. Step 3: Cross multiply
    393,880.22x = 625,269.38 × 625,269.38
  4. Step 4: Simplify right side
    393,880.22x = 390,961,791,312.89
  5. Step 5: Solve for x
    x = 390,961,791,312.89/393,880.22
  6. Step 6: Final answer
    x = 992,590.57

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.