Home / 619,043.85-929,006.82-282,129.21

Finding the Fourth Proportional to 619,043.85, 929,006.82 and 282,129.21

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Solution

The fourth proportional to 619,043.85, 929,006.82 and 282,129.21 is: 423,394.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,043.85 : 929,006.82 = 282,129.21 : x
  2. Step 2: Convert to fraction form
    619,043.85/929,006.82 = 282,129.21/x
  3. Step 3: Cross multiply
    619,043.85x = 929,006.82 × 282,129.21
  4. Step 4: Simplify right side
    619,043.85x = 262,099,960,211.21
  5. Step 5: Solve for x
    x = 262,099,960,211.21/619,043.85
  6. Step 6: Final answer
    x = 423,394.82

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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.