Home / 641,028.24-884,614.50-354,537.72

Finding the Fourth Proportional to 641,028.24, 884,614.50 and 354,537.72

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Solution

The fourth proportional to 641,028.24, 884,614.50 and 354,537.72 is: 489,259.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,028.24 : 884,614.50 = 354,537.72 : x
  2. Step 2: Convert to fraction form
    641,028.24/884,614.50 = 354,537.72/x
  3. Step 3: Cross multiply
    641,028.24x = 884,614.50 × 354,537.72
  4. Step 4: Simplify right side
    641,028.24x = 313,629,207,908.94
  5. Step 5: Solve for x
    x = 313,629,207,908.94/641,028.24
  6. Step 6: Final answer
    x = 489,259.58

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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.