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Finding the Fourth Proportional to 560,368.37, 773,276.85 and 318,709.73

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Solution

The fourth proportional to 560,368.37, 773,276.85 and 318,709.73 is: 439,801.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,368.37 : 773,276.85 = 318,709.73 : x
  2. Step 2: Convert to fraction form
    560,368.37/773,276.85 = 318,709.73/x
  3. Step 3: Cross multiply
    560,368.37x = 773,276.85 × 318,709.73
  4. Step 4: Simplify right side
    560,368.37x = 246,450,858,011.94
  5. Step 5: Solve for x
    x = 246,450,858,011.94/560,368.37
  6. Step 6: Final answer
    x = 439,801.51

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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.