Home / 641,371.58-884,952.20-383,209.76

Finding the Fourth Proportional to 641,371.58, 884,952.20 and 383,209.76

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Solution

The fourth proportional to 641,371.58, 884,952.20 and 383,209.76 is: 528,745.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,371.58 : 884,952.20 = 383,209.76 : x
  2. Step 2: Convert to fraction form
    641,371.58/884,952.20 = 383,209.76/x
  3. Step 3: Cross multiply
    641,371.58x = 884,952.20 × 383,209.76
  4. Step 4: Simplify right side
    641,371.58x = 339,122,313,832.66
  5. Step 5: Solve for x
    x = 339,122,313,832.66/641,371.58
  6. Step 6: Final answer
    x = 528,745.47

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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.