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Finding the Third Proportional to 219,657 and 479,590.50

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Solution

The third proportional to 219,657 and 479,590.50 is: 1,047,119.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,657 : 479,590.50 = 479,590.50 : x
  2. Step 2: Convert to fraction form
    219,657/479,590.50 = 479,590.50/x
  3. Step 3: Cross multiply
    219,657x = 479,590.50 × 479,590.50
  4. Step 4: Simplify right side
    219,657x = 230,007,047,690.25
  5. Step 5: Solve for x
    x = 230,007,047,690.25/219,657
  6. Step 6: Final answer
    x = 1,047,119.13

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.