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Finding the Fourth Proportional to 439,718.63, 606,811.91 and 248,727.92

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Solution

The fourth proportional to 439,718.63, 606,811.91 and 248,727.92 is: 343,244.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,718.63 : 606,811.91 = 248,727.92 : x
  2. Step 2: Convert to fraction form
    439,718.63/606,811.91 = 248,727.92/x
  3. Step 3: Cross multiply
    439,718.63x = 606,811.91 × 248,727.92
  4. Step 4: Simplify right side
    439,718.63x = 150,931,059,927.83
  5. Step 5: Solve for x
    x = 150,931,059,927.83/439,718.63
  6. Step 6: Final answer
    x = 343,244.64

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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.