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Finding the Fourth Proportional to 707,722.66, 976,684.92 and 401,827.54

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Solution

The fourth proportional to 707,722.66, 976,684.92 and 401,827.54 is: 554,537.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,722.66 : 976,684.92 = 401,827.54 : x
  2. Step 2: Convert to fraction form
    707,722.66/976,684.92 = 401,827.54/x
  3. Step 3: Cross multiply
    707,722.66x = 976,684.92 × 401,827.54
  4. Step 4: Simplify right side
    707,722.66x = 392,458,896,316.99
  5. Step 5: Solve for x
    x = 392,458,896,316.99/707,722.66
  6. Step 6: Final answer
    x = 554,537.70

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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.