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Finding the Fourth Proportional to 1,383,363, 1,909,040.94 and 779,751

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Solution

The fourth proportional to 1,383,363, 1,909,040.94 and 779,751 is: 1,076,056.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,363 : 1,909,040.94 = 779,751 : x
  2. Step 2: Convert to fraction form
    1,383,363/1,909,040.94 = 779,751/x
  3. Step 3: Cross multiply
    1,383,363x = 1,909,040.94 × 779,751
  4. Step 4: Simplify right side
    1,383,363x = 1,488,576,582,005.94
  5. Step 5: Solve for x
    x = 1,488,576,582,005.94/1,383,363
  6. Step 6: Final answer
    x = 1,076,056.38

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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.