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Finding the Third Proportional to 319,428 and 703,669.50

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Solution

The third proportional to 319,428 and 703,669.50 is: 1,550,116.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,428 : 703,669.50 = 703,669.50 : x
  2. Step 2: Convert to fraction form
    319,428/703,669.50 = 703,669.50/x
  3. Step 3: Cross multiply
    319,428x = 703,669.50 × 703,669.50
  4. Step 4: Simplify right side
    319,428x = 495,150,765,230.25
  5. Step 5: Solve for x
    x = 495,150,765,230.25/319,428
  6. Step 6: Final answer
    x = 1,550,116.98

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.