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Finding the Fourth Proportional to 511,131.35, 705,366.08 and 281,696.91

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Solution

The fourth proportional to 511,131.35, 705,366.08 and 281,696.91 is: 388,744.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,131.35 : 705,366.08 = 281,696.91 : x
  2. Step 2: Convert to fraction form
    511,131.35/705,366.08 = 281,696.91/x
  3. Step 3: Cross multiply
    511,131.35x = 705,366.08 × 281,696.91
  4. Step 4: Simplify right side
    511,131.35x = 198,699,445,154.81
  5. Step 5: Solve for x
    x = 198,699,445,154.81/511,131.35
  6. Step 6: Final answer
    x = 388,744.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.