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Finding the Fourth Proportional to 1,947,642.60, 2,922,338.70 and 882,136.20

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Solution

The fourth proportional to 1,947,642.60, 2,922,338.70 and 882,136.20 is: 1,323,600.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,642.60 : 2,922,338.70 = 882,136.20 : x
  2. Step 2: Convert to fraction form
    1,947,642.60/2,922,338.70 = 882,136.20/x
  3. Step 3: Cross multiply
    1,947,642.60x = 2,922,338.70 × 882,136.20
  4. Step 4: Simplify right side
    1,947,642.60x = 2,577,900,755,930.94
  5. Step 5: Solve for x
    x = 2,577,900,755,930.94/1,947,642.60
  6. Step 6: Final answer
    x = 1,323,600.52

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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.