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Finding the Third Proportional to 1,778,117.25 and 2,540,890.50

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Solution

The third proportional to 1,778,117.25 and 2,540,890.50 is: 3,630,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,117.25 : 2,540,890.50 = 2,540,890.50 : x
  2. Step 2: Convert to fraction form
    1,778,117.25/2,540,890.50 = 2,540,890.50/x
  3. Step 3: Cross multiply
    1,778,117.25x = 2,540,890.50 × 2,540,890.50
  4. Step 4: Simplify right side
    1,778,117.25x = 6,456,124,532,990.25
  5. Step 5: Solve for x
    x = 6,456,124,532,990.25/1,778,117.25
  6. Step 6: Final answer
    x = 3,630,876.72

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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.