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Finding the Fourth Proportional to 616,871.09, 851,277.30 and 344,939.51

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Solution

The fourth proportional to 616,871.09, 851,277.30 and 344,939.51 is: 476,013.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,871.09 : 851,277.30 = 344,939.51 : x
  2. Step 2: Convert to fraction form
    616,871.09/851,277.30 = 344,939.51/x
  3. Step 3: Cross multiply
    616,871.09x = 851,277.30 × 344,939.51
  4. Step 4: Simplify right side
    616,871.09x = 293,639,175,570.79
  5. Step 5: Solve for x
    x = 293,639,175,570.79/616,871.09
  6. Step 6: Final answer
    x = 476,013.84

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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.