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Finding the Third Proportional to 517,203 and 776,430

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Solution

The third proportional to 517,203 and 776,430 is: 1,165,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,203 : 776,430 = 776,430 : x
  2. Step 2: Convert to fraction form
    517,203/776,430 = 776,430/x
  3. Step 3: Cross multiply
    517,203x = 776,430 × 776,430
  4. Step 4: Simplify right side
    517,203x = 602,843,544,900
  5. Step 5: Solve for x
    x = 602,843,544,900/517,203
  6. Step 6: Final answer
    x = 1,165,584.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.