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Finding the Third Proportional to 1,287,460.50 and 2,038,216.88

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Solution

The third proportional to 1,287,460.50 and 2,038,216.88 is: 3,226,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,460.50 : 2,038,216.88 = 2,038,216.88 : x
  2. Step 2: Convert to fraction form
    1,287,460.50/2,038,216.88 = 2,038,216.88/x
  3. Step 3: Cross multiply
    1,287,460.50x = 2,038,216.88 × 2,038,216.88
  4. Step 4: Simplify right side
    1,287,460.50x = 4,154,328,029,534.77
  5. Step 5: Solve for x
    x = 4,154,328,029,534.77/1,287,460.50
  6. Step 6: Final answer
    x = 3,226,761.54

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.