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Finding the Fourth Proportional to 893,470.88, 1,232,969.04 and 485,563.04

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Solution

The fourth proportional to 893,470.88, 1,232,969.04 and 485,563.04 is: 670,065.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,470.88 : 1,232,969.04 = 485,563.04 : x
  2. Step 2: Convert to fraction form
    893,470.88/1,232,969.04 = 485,563.04/x
  3. Step 3: Cross multiply
    893,470.88x = 1,232,969.04 × 485,563.04
  4. Step 4: Simplify right side
    893,470.88x = 598,684,195,288.28
  5. Step 5: Solve for x
    x = 598,684,195,288.28/893,470.88
  6. Step 6: Final answer
    x = 670,065.71

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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.