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Finding the Fourth Proportional to 627,798.96, 940,662.96 and 361,782.96

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Solution

The fourth proportional to 627,798.96, 940,662.96 and 361,782.96 is: 542,077.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,798.96 : 940,662.96 = 361,782.96 : x
  2. Step 2: Convert to fraction form
    627,798.96/940,662.96 = 361,782.96/x
  3. Step 3: Cross multiply
    627,798.96x = 940,662.96 × 361,782.96
  4. Step 4: Simplify right side
    627,798.96x = 340,315,830,031.16
  5. Step 5: Solve for x
    x = 340,315,830,031.16/627,798.96
  6. Step 6: Final answer
    x = 542,077.72

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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.