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Finding the Fourth Proportional to 574,725.54, 793,145.85 and 320,076.74

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Solution

The fourth proportional to 574,725.54, 793,145.85 and 320,076.74 is: 441,719.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,725.54 : 793,145.85 = 320,076.74 : x
  2. Step 2: Convert to fraction form
    574,725.54/793,145.85 = 320,076.74/x
  3. Step 3: Cross multiply
    574,725.54x = 793,145.85 × 320,076.74
  4. Step 4: Simplify right side
    574,725.54x = 253,867,534,046.80
  5. Step 5: Solve for x
    x = 253,867,534,046.80/574,725.54
  6. Step 6: Final answer
    x = 441,719.60

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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.