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Finding the Third Proportional to 388,800.25 and 583,200.50

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Solution

The third proportional to 388,800.25 and 583,200.50 is: 874,800.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,800.25 : 583,200.50 = 583,200.50 : x
  2. Step 2: Convert to fraction form
    388,800.25/583,200.50 = 583,200.50/x
  3. Step 3: Cross multiply
    388,800.25x = 583,200.50 × 583,200.50
  4. Step 4: Simplify right side
    388,800.25x = 340,122,823,200.25
  5. Step 5: Solve for x
    x = 340,122,823,200.25/388,800.25
  6. Step 6: Final answer
    x = 874,800.94

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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.