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Finding the Fourth Proportional to 439,636.32, 606,812.16 and 248,760.42

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Solution

The fourth proportional to 439,636.32, 606,812.16 and 248,760.42 is: 343,353.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,636.32 : 606,812.16 = 248,760.42 : x
  2. Step 2: Convert to fraction form
    439,636.32/606,812.16 = 248,760.42/x
  3. Step 3: Cross multiply
    439,636.32x = 606,812.16 × 248,760.42
  4. Step 4: Simplify right side
    439,636.32x = 150,950,847,782.71
  5. Step 5: Solve for x
    x = 150,950,847,782.71/439,636.32
  6. Step 6: Final answer
    x = 343,353.91

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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.