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Finding the Fourth Proportional to 1,294,978.20, 1,941,884.10 and 584,640.60

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Solution

The fourth proportional to 1,294,978.20, 1,941,884.10 and 584,640.60 is: 876,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,978.20 : 1,941,884.10 = 584,640.60 : x
  2. Step 2: Convert to fraction form
    1,294,978.20/1,941,884.10 = 584,640.60/x
  3. Step 3: Cross multiply
    1,294,978.20x = 1,941,884.10 × 584,640.60
  4. Step 4: Simplify right side
    1,294,978.20x = 1,135,304,285,354.46
  5. Step 5: Solve for x
    x = 1,135,304,285,354.46/1,294,978.20
  6. Step 6: Final answer
    x = 876,697.60

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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.