Home / 511,255.06-705,536.93-281,821.28

Finding the Fourth Proportional to 511,255.06, 705,536.93 and 281,821.28

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Solution

The fourth proportional to 511,255.06, 705,536.93 and 281,821.28 is: 388,916.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,255.06 : 705,536.93 = 281,821.28 : x
  2. Step 2: Convert to fraction form
    511,255.06/705,536.93 = 281,821.28/x
  3. Step 3: Cross multiply
    511,255.06x = 705,536.93 × 281,821.28
  4. Step 4: Simplify right side
    511,255.06x = 198,835,317,876.74
  5. Step 5: Solve for x
    x = 198,835,317,876.74/511,255.06
  6. Step 6: Final answer
    x = 388,916.09

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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.