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Finding the Fourth Proportional to 439,778.97, 606,861.52 and 248,804.66

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Solution

The fourth proportional to 439,778.97, 606,861.52 and 248,804.66 is: 343,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,778.97 : 606,861.52 = 248,804.66 : x
  2. Step 2: Convert to fraction form
    439,778.97/606,861.52 = 248,804.66/x
  3. Step 3: Cross multiply
    439,778.97x = 606,861.52 × 248,804.66
  4. Step 4: Simplify right side
    439,778.97x = 150,989,975,045.83
  5. Step 5: Solve for x
    x = 150,989,975,045.83/439,778.97
  6. Step 6: Final answer
    x = 343,331.50

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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.