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Finding the Fourth Proportional to 707,754.50, 976,686.63 and 385,470.26

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Solution

The fourth proportional to 707,754.50, 976,686.63 and 385,470.26 is: 531,941.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,754.50 : 976,686.63 = 385,470.26 : x
  2. Step 2: Convert to fraction form
    707,754.50/976,686.63 = 385,470.26/x
  3. Step 3: Cross multiply
    707,754.50x = 976,686.63 × 385,470.26
  4. Step 4: Simplify right side
    707,754.50x = 376,483,649,204.62
  5. Step 5: Solve for x
    x = 376,483,649,204.62/707,754.50
  6. Step 6: Final answer
    x = 531,941.02

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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.