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Finding the Third Proportional to 489,765.50 and 742,040.50

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Solution

The third proportional to 489,765.50 and 742,040.50 is: 1,124,260.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,765.50 : 742,040.50 = 742,040.50 : x
  2. Step 2: Convert to fraction form
    489,765.50/742,040.50 = 742,040.50/x
  3. Step 3: Cross multiply
    489,765.50x = 742,040.50 × 742,040.50
  4. Step 4: Simplify right side
    489,765.50x = 550,624,103,640.25
  5. Step 5: Solve for x
    x = 550,624,103,640.25/489,765.50
  6. Step 6: Final answer
    x = 1,124,260.70

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These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.