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Finding the Third Proportional to 386,465 and 613,285.50

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Solution

The third proportional to 386,465 and 613,285.50 is: 973,229.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,465 : 613,285.50 = 613,285.50 : x
  2. Step 2: Convert to fraction form
    386,465/613,285.50 = 613,285.50/x
  3. Step 3: Cross multiply
    386,465x = 613,285.50 × 613,285.50
  4. Step 4: Simplify right side
    386,465x = 376,119,104,510.25
  5. Step 5: Solve for x
    x = 376,119,104,510.25/386,465
  6. Step 6: Final answer
    x = 973,229.41

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.