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Finding the Fourth Proportional to 439,089.16, 606,042.42 and 248,213.32

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Solution

The fourth proportional to 439,089.16, 606,042.42 and 248,213.32 is: 342,590.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,089.16 : 606,042.42 = 248,213.32 : x
  2. Step 2: Convert to fraction form
    439,089.16/606,042.42 = 248,213.32/x
  3. Step 3: Cross multiply
    439,089.16x = 606,042.42 × 248,213.32
  4. Step 4: Simplify right side
    439,089.16x = 150,427,801,129.03
  5. Step 5: Solve for x
    x = 150,427,801,129.03/439,089.16
  6. Step 6: Final answer
    x = 342,590.56

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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.