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Finding the Fourth Proportional to 442,144.40, 661,805.40 and 348,832.40

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Solution

The fourth proportional to 442,144.40, 661,805.40 and 348,832.40 is: 522,135.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,144.40 : 661,805.40 = 348,832.40 : x
  2. Step 2: Convert to fraction form
    442,144.40/661,805.40 = 348,832.40/x
  3. Step 3: Cross multiply
    442,144.40x = 661,805.40 × 348,832.40
  4. Step 4: Simplify right side
    442,144.40x = 230,859,166,014.96
  5. Step 5: Solve for x
    x = 230,859,166,014.96/442,144.40
  6. Step 6: Final answer
    x = 522,135.23

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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.