Home / 454,129.20-681,193.80-384,145.20

Finding the Fourth Proportional to 454,129.20, 681,193.80 and 384,145.20

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Solution

The fourth proportional to 454,129.20, 681,193.80 and 384,145.20 is: 576,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,129.20 : 681,193.80 = 384,145.20 : x
  2. Step 2: Convert to fraction form
    454,129.20/681,193.80 = 384,145.20/x
  3. Step 3: Cross multiply
    454,129.20x = 681,193.80 × 384,145.20
  4. Step 4: Simplify right side
    454,129.20x = 261,677,328,539.76
  5. Step 5: Solve for x
    x = 261,677,328,539.76/454,129.20
  6. Step 6: Final answer
    x = 576,217.80

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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.