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Finding the Fourth Proportional to 1,984,978.08, 2,737,866.96 and 1,373,317.92

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Solution

The fourth proportional to 1,984,978.08, 2,737,866.96 and 1,373,317.92 is: 1,894,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,978.08 : 2,737,866.96 = 1,373,317.92 : x
  2. Step 2: Convert to fraction form
    1,984,978.08/2,737,866.96 = 1,373,317.92/x
  3. Step 3: Cross multiply
    1,984,978.08x = 2,737,866.96 × 1,373,317.92
  4. Step 4: Simplify right side
    1,984,978.08x = 3,759,961,758,743.92
  5. Step 5: Solve for x
    x = 3,759,961,758,743.92/1,984,978.08
  6. Step 6: Final answer
    x = 1,894,208.20

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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.