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Finding the Fourth Proportional to 439,675, 606,751.54 and 248,684.28

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Solution

The fourth proportional to 439,675, 606,751.54 and 248,684.28 is: 343,184.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,675 : 606,751.54 = 248,684.28 : x
  2. Step 2: Convert to fraction form
    439,675/606,751.54 = 248,684.28/x
  3. Step 3: Cross multiply
    439,675x = 606,751.54 × 248,684.28
  4. Step 4: Simplify right side
    439,675x = 150,889,569,863.79
  5. Step 5: Solve for x
    x = 150,889,569,863.79/439,675
  6. Step 6: Final answer
    x = 343,184.33

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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.