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Finding the Fourth Proportional to 707,295.43, 976,080.16 and 385,014.79

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Solution

The fourth proportional to 707,295.43, 976,080.16 and 385,014.79 is: 531,327.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,295.43 : 976,080.16 = 385,014.79 : x
  2. Step 2: Convert to fraction form
    707,295.43/976,080.16 = 385,014.79/x
  3. Step 3: Cross multiply
    707,295.43x = 976,080.16 × 385,014.79
  4. Step 4: Simplify right side
    707,295.43x = 375,805,297,825.57
  5. Step 5: Solve for x
    x = 375,805,297,825.57/707,295.43
  6. Step 6: Final answer
    x = 531,327.20

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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.