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Finding the Fourth Proportional to 574,787.30, 793,146.87 and 353,989.64

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Solution

The fourth proportional to 574,787.30, 793,146.87 and 353,989.64 is: 488,469.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,787.30 : 793,146.87 = 353,989.64 : x
  2. Step 2: Convert to fraction form
    574,787.30/793,146.87 = 353,989.64/x
  3. Step 3: Cross multiply
    574,787.30x = 793,146.87 × 353,989.64
  4. Step 4: Simplify right side
    574,787.30x = 280,765,774,978.43
  5. Step 5: Solve for x
    x = 280,765,774,978.43/574,787.30
  6. Step 6: Final answer
    x = 488,469.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.