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Finding the Fourth Proportional to 560,732.15, 773,783.46 and 318,992.10

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Solution

The fourth proportional to 560,732.15, 773,783.46 and 318,992.10 is: 440,193.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,732.15 : 773,783.46 = 318,992.10 : x
  2. Step 2: Convert to fraction form
    560,732.15/773,783.46 = 318,992.10/x
  3. Step 3: Cross multiply
    560,732.15x = 773,783.46 × 318,992.10
  4. Step 4: Simplify right side
    560,732.15x = 246,830,810,850.67
  5. Step 5: Solve for x
    x = 246,830,810,850.67/560,732.15
  6. Step 6: Final answer
    x = 440,193.79

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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.