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Finding the Fourth Proportional to 1,943,743.82, 2,915,594.67 and 664,339.10

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Solution

The fourth proportional to 1,943,743.82, 2,915,594.67 and 664,339.10 is: 996,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,743.82 : 2,915,594.67 = 664,339.10 : x
  2. Step 2: Convert to fraction form
    1,943,743.82/2,915,594.67 = 664,339.10/x
  3. Step 3: Cross multiply
    1,943,743.82x = 2,915,594.67 × 664,339.10
  4. Step 4: Simplify right side
    1,943,743.82x = 1,936,943,539,032.60
  5. Step 5: Solve for x
    x = 1,936,943,539,032.60/1,943,743.82
  6. Step 6: Final answer
    x = 996,501.45

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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.