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Finding the Fourth Proportional to 6,348,888.78, 8,761,491.54 and 3,448,328.07

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Solution

The fourth proportional to 6,348,888.78, 8,761,491.54 and 3,448,328.07 is: 4,758,706.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,348,888.78 : 8,761,491.54 = 3,448,328.07 : x
  2. Step 2: Convert to fraction form
    6,348,888.78/8,761,491.54 = 3,448,328.07/x
  3. Step 3: Cross multiply
    6,348,888.78x = 8,761,491.54 × 3,448,328.07
  4. Step 4: Simplify right side
    6,348,888.78x = 30,212,497,212,449.52
  5. Step 5: Solve for x
    x = 30,212,497,212,449.52/6,348,888.78
  6. Step 6: Final answer
    x = 4,758,706.33

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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.