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Finding the Fourth Proportional to 352,416.98, 486,217.05 and 225,167.06

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Solution

The fourth proportional to 352,416.98, 486,217.05 and 225,167.06 is: 310,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,416.98 : 486,217.05 = 225,167.06 : x
  2. Step 2: Convert to fraction form
    352,416.98/486,217.05 = 225,167.06/x
  3. Step 3: Cross multiply
    352,416.98x = 486,217.05 × 225,167.06
  4. Step 4: Simplify right side
    352,416.98x = 109,480,061,239.29
  5. Step 5: Solve for x
    x = 109,480,061,239.29/352,416.98
  6. Step 6: Final answer
    x = 310,654.90

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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.