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Finding the Fourth Proportional to 357,633.40, 493,542.78 and 196,498.88

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Solution

The fourth proportional to 357,633.40, 493,542.78 and 196,498.88 is: 271,173.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,633.40 : 493,542.78 = 196,498.88 : x
  2. Step 2: Convert to fraction form
    357,633.40/493,542.78 = 196,498.88/x
  3. Step 3: Cross multiply
    357,633.40x = 493,542.78 × 196,498.88
  4. Step 4: Simplify right side
    357,633.40x = 96,980,603,502.09
  5. Step 5: Solve for x
    x = 96,980,603,502.09/357,633.40
  6. Step 6: Final answer
    x = 271,173.23

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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.