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Finding the Fourth Proportional to 1,985,855.60, 2,978,898.60 and 566,015.60

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Solution

The fourth proportional to 1,985,855.60, 2,978,898.60 and 566,015.60 is: 849,056.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,855.60 : 2,978,898.60 = 566,015.60 : x
  2. Step 2: Convert to fraction form
    1,985,855.60/2,978,898.60 = 566,015.60/x
  3. Step 3: Cross multiply
    1,985,855.60x = 2,978,898.60 × 566,015.60
  4. Step 4: Simplify right side
    1,985,855.60x = 1,686,103,078,418.16
  5. Step 5: Solve for x
    x = 1,686,103,078,418.16/1,985,855.60
  6. Step 6: Final answer
    x = 849,056.23

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.