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Finding the Fourth Proportional to 707,955.96, 976,954.59 and 385,657.77

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Solution

The fourth proportional to 707,955.96, 976,954.59 and 385,657.77 is: 532,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,955.96 : 976,954.59 = 385,657.77 : x
  2. Step 2: Convert to fraction form
    707,955.96/976,954.59 = 385,657.77/x
  3. Step 3: Cross multiply
    707,955.96x = 976,954.59 × 385,657.77
  4. Step 4: Simplify right side
    707,955.96x = 376,770,128,570.66
  5. Step 5: Solve for x
    x = 376,770,128,570.66/707,955.96
  6. Step 6: Final answer
    x = 532,194.30

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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.