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Finding the Fourth Proportional to 627,783.40, 941,732.70 and 207,060.20

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Solution

The fourth proportional to 627,783.40, 941,732.70 and 207,060.20 is: 310,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,783.40 : 941,732.70 = 207,060.20 : x
  2. Step 2: Convert to fraction form
    627,783.40/941,732.70 = 207,060.20/x
  3. Step 3: Cross multiply
    627,783.40x = 941,732.70 × 207,060.20
  4. Step 4: Simplify right side
    627,783.40x = 194,995,361,208.54
  5. Step 5: Solve for x
    x = 194,995,361,208.54/627,783.40
  6. Step 6: Final answer
    x = 310,609.30

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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.