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Finding the Fourth Proportional to 893,833.84, 1,233,515.01 and 485,963.11

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Solution

The fourth proportional to 893,833.84, 1,233,515.01 and 485,963.11 is: 670,642.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,833.84 : 1,233,515.01 = 485,963.11 : x
  2. Step 2: Convert to fraction form
    893,833.84/1,233,515.01 = 485,963.11/x
  3. Step 3: Cross multiply
    893,833.84x = 1,233,515.01 × 485,963.11
  4. Step 4: Simplify right side
    893,833.84x = 599,442,790,491.28
  5. Step 5: Solve for x
    x = 599,442,790,491.28/893,833.84
  6. Step 6: Final answer
    x = 670,642.31

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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.