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Finding the Fourth Proportional to 323,987.69, 486,198.45 and 134,448.24

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Solution

The fourth proportional to 323,987.69, 486,198.45 and 134,448.24 is: 201,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,987.69 : 486,198.45 = 134,448.24 : x
  2. Step 2: Convert to fraction form
    323,987.69/486,198.45 = 134,448.24/x
  3. Step 3: Cross multiply
    323,987.69x = 486,198.45 × 134,448.24
  4. Step 4: Simplify right side
    323,987.69x = 65,368,525,893.23
  5. Step 5: Solve for x
    x = 65,368,525,893.23/323,987.69
  6. Step 6: Final answer
    x = 201,762.38

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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.