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Finding the Fourth Proportional to 1,538,751, 2,123,418.87 and 885,477.90

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Solution

The fourth proportional to 1,538,751, 2,123,418.87 and 885,477.90 is: 1,221,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,751 : 2,123,418.87 = 885,477.90 : x
  2. Step 2: Convert to fraction form
    1,538,751/2,123,418.87 = 885,477.90/x
  3. Step 3: Cross multiply
    1,538,751x = 2,123,418.87 × 885,477.90
  4. Step 4: Simplify right side
    1,538,751x = 1,880,240,481,827.97
  5. Step 5: Solve for x
    x = 1,880,240,481,827.97/1,538,751
  6. Step 6: Final answer
    x = 1,221,926.41

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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.