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Finding the Fourth Proportional to 619,393.14, 928,462.23 and 419,733.72

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Solution

The fourth proportional to 619,393.14, 928,462.23 and 419,733.72 is: 629,175.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,393.14 : 928,462.23 = 419,733.72 : x
  2. Step 2: Convert to fraction form
    619,393.14/928,462.23 = 419,733.72/x
  3. Step 3: Cross multiply
    619,393.14x = 928,462.23 × 419,733.72
  4. Step 4: Simplify right side
    619,393.14x = 389,706,905,677.40
  5. Step 5: Solve for x
    x = 389,706,905,677.40/619,393.14
  6. Step 6: Final answer
    x = 629,175.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.