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Finding the Fourth Proportional to 1,947,685.60, 2,922,403.20 and 882,179.20

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Solution

The fourth proportional to 1,947,685.60, 2,922,403.20 and 882,179.20 is: 1,323,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,685.60 : 2,922,403.20 = 882,179.20 : x
  2. Step 2: Convert to fraction form
    1,947,685.60/2,922,403.20 = 882,179.20/x
  3. Step 3: Cross multiply
    1,947,685.60x = 2,922,403.20 × 882,179.20
  4. Step 4: Simplify right side
    1,947,685.60x = 2,578,083,317,053.44
  5. Step 5: Solve for x
    x = 2,578,083,317,053.44/1,947,685.60
  6. Step 6: Final answer
    x = 1,323,665.03

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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.