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Finding the Fourth Proportional to 1,321,907.76, 1,982,936.88 and 375,204

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Solution

The fourth proportional to 1,321,907.76, 1,982,936.88 and 375,204 is: 562,827.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,907.76 : 1,982,936.88 = 375,204 : x
  2. Step 2: Convert to fraction form
    1,321,907.76/1,982,936.88 = 375,204/x
  3. Step 3: Cross multiply
    1,321,907.76x = 1,982,936.88 × 375,204
  4. Step 4: Simplify right side
    1,321,907.76x = 744,005,849,123.52
  5. Step 5: Solve for x
    x = 744,005,849,123.52/1,321,907.76
  6. Step 6: Final answer
    x = 562,827.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.