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Finding the Fourth Proportional to 439,797.09, 606,915.89 and 248,810.48

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Solution

The fourth proportional to 439,797.09, 606,915.89 and 248,810.48 is: 343,356.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,797.09 : 606,915.89 = 248,810.48 : x
  2. Step 2: Convert to fraction form
    439,797.09/606,915.89 = 248,810.48/x
  3. Step 3: Cross multiply
    439,797.09x = 606,915.89 × 248,810.48
  4. Step 4: Simplify right side
    439,797.09x = 151,007,036,254.77
  5. Step 5: Solve for x
    x = 151,007,036,254.77/439,797.09
  6. Step 6: Final answer
    x = 343,356.15

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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.