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Finding the Third Proportional to 239,280 and 525,730.50

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Solution

The third proportional to 239,280 and 525,730.50 is: 1,155,100.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,280 : 525,730.50 = 525,730.50 : x
  2. Step 2: Convert to fraction form
    239,280/525,730.50 = 525,730.50/x
  3. Step 3: Cross multiply
    239,280x = 525,730.50 × 525,730.50
  4. Step 4: Simplify right side
    239,280x = 276,392,558,630.25
  5. Step 5: Solve for x
    x = 276,392,558,630.25/239,280
  6. Step 6: Final answer
    x = 1,155,100.96

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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.