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Finding the Fourth Proportional to 441,638.70, 609,412.98 and 248,007.18

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Solution

The fourth proportional to 441,638.70, 609,412.98 and 248,007.18 is: 342,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,638.70 : 609,412.98 = 248,007.18 : x
  2. Step 2: Convert to fraction form
    441,638.70/609,412.98 = 248,007.18/x
  3. Step 3: Cross multiply
    441,638.70x = 609,412.98 × 248,007.18
  4. Step 4: Simplify right side
    441,638.70x = 151,138,794,625.20
  5. Step 5: Solve for x
    x = 151,138,794,625.20/441,638.70
  6. Step 6: Final answer
    x = 342,222.71

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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.