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Finding the Fourth Proportional to 627,969.90, 941,823 and 207,147.18

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Solution

The fourth proportional to 627,969.90, 941,823 and 207,147.18 is: 310,677.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,969.90 : 941,823 = 207,147.18 : x
  2. Step 2: Convert to fraction form
    627,969.90/941,823 = 207,147.18/x
  3. Step 3: Cross multiply
    627,969.90x = 941,823 × 207,147.18
  4. Step 4: Simplify right side
    627,969.90x = 195,095,978,509.14
  5. Step 5: Solve for x
    x = 195,095,978,509.14/627,969.90
  6. Step 6: Final answer
    x = 310,677.28

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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.