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Finding the Fourth Proportional to 557,369.46, 769,235.40 and 331,014.96

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Solution

The fourth proportional to 557,369.46, 769,235.40 and 331,014.96 is: 456,839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,369.46 : 769,235.40 = 331,014.96 : x
  2. Step 2: Convert to fraction form
    557,369.46/769,235.40 = 331,014.96/x
  3. Step 3: Cross multiply
    557,369.46x = 769,235.40 × 331,014.96
  4. Step 4: Simplify right side
    557,369.46x = 254,628,425,161.58
  5. Step 5: Solve for x
    x = 254,628,425,161.58/557,369.46
  6. Step 6: Final answer
    x = 456,839.57

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1.5x scale

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.