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Finding the Fourth Proportional to 511,144.44, 705,384.06 and 281,710.10

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Solution

The fourth proportional to 511,144.44, 705,384.06 and 281,710.10 is: 388,762.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,144.44 : 705,384.06 = 281,710.10 : x
  2. Step 2: Convert to fraction form
    511,144.44/705,384.06 = 281,710.10/x
  3. Step 3: Cross multiply
    511,144.44x = 705,384.06 × 281,710.10
  4. Step 4: Simplify right side
    511,144.44x = 198,713,814,081.01
  5. Step 5: Solve for x
    x = 198,713,814,081.01/511,144.44
  6. Step 6: Final answer
    x = 388,762.55

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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.