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Finding the Fourth Proportional to 707,564.91, 976,435.41 and 385,274.24

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Solution

The fourth proportional to 707,564.91, 976,435.41 and 385,274.24 is: 531,676.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,564.91 : 976,435.41 = 385,274.24 : x
  2. Step 2: Convert to fraction form
    707,564.91/976,435.41 = 385,274.24/x
  3. Step 3: Cross multiply
    707,564.91x = 976,435.41 × 385,274.24
  4. Step 4: Simplify right side
    707,564.91x = 376,195,405,614.66
  5. Step 5: Solve for x
    x = 376,195,405,614.66/707,564.91
  6. Step 6: Final answer
    x = 531,676.18

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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.