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Finding the Fourth Proportional to 554,764.75, 765,576.66 and 300,115.94

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Solution

The fourth proportional to 554,764.75, 765,576.66 and 300,115.94 is: 414,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,764.75 : 765,576.66 = 300,115.94 : x
  2. Step 2: Convert to fraction form
    554,764.75/765,576.66 = 300,115.94/x
  3. Step 3: Cross multiply
    554,764.75x = 765,576.66 × 300,115.94
  4. Step 4: Simplify right side
    554,764.75x = 229,761,756,255.51
  5. Step 5: Solve for x
    x = 229,761,756,255.51/554,764.75
  6. Step 6: Final answer
    x = 414,160.70

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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.