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Finding the Fourth Proportional to 560,732.64, 773,784.14 and 318,992.60

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Solution

The fourth proportional to 560,732.64, 773,784.14 and 318,992.60 is: 440,194.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,732.64 : 773,784.14 = 318,992.60 : x
  2. Step 2: Convert to fraction form
    560,732.64/773,784.14 = 318,992.60/x
  3. Step 3: Cross multiply
    560,732.64x = 773,784.14 × 318,992.60
  4. Step 4: Simplify right side
    560,732.64x = 246,831,414,657.36
  5. Step 5: Solve for x
    x = 246,831,414,657.36/560,732.64
  6. Step 6: Final answer
    x = 440,194.48

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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.