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Finding the Fourth Proportional to 2,904,978.60, 4,357,467.90 and 1,645,266.60

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Solution

The fourth proportional to 2,904,978.60, 4,357,467.90 and 1,645,266.60 is: 2,467,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904,978.60 : 4,357,467.90 = 1,645,266.60 : x
  2. Step 2: Convert to fraction form
    2,904,978.60/4,357,467.90 = 1,645,266.60/x
  3. Step 3: Cross multiply
    2,904,978.60x = 4,357,467.90 × 1,645,266.60
  4. Step 4: Simplify right side
    2,904,978.60x = 7,169,196,396,442.14
  5. Step 5: Solve for x
    x = 7,169,196,396,442.14/2,904,978.60
  6. Step 6: Final answer
    x = 2,467,899.90

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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.