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Finding the Third Proportional to 179,948 and 393,798

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Solution

The third proportional to 179,948 and 393,798 is: 861,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,948 : 393,798 = 393,798 : x
  2. Step 2: Convert to fraction form
    179,948/393,798 = 393,798/x
  3. Step 3: Cross multiply
    179,948x = 393,798 × 393,798
  4. Step 4: Simplify right side
    179,948x = 155,076,864,804
  5. Step 5: Solve for x
    x = 155,076,864,804/179,948
  6. Step 6: Final answer
    x = 861,787.10

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.