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Finding the Fourth Proportional to 1,719,083.90, 2,576,742.60 and 864,793.10

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Solution

The fourth proportional to 1,719,083.90, 2,576,742.60 and 864,793.10 is: 1,296,242.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719,083.90 : 2,576,742.60 = 864,793.10 : x
  2. Step 2: Convert to fraction form
    1,719,083.90/2,576,742.60 = 864,793.10/x
  3. Step 3: Cross multiply
    1,719,083.90x = 2,576,742.60 × 864,793.10
  4. Step 4: Simplify right side
    1,719,083.90x = 2,228,349,220,956.06
  5. Step 5: Solve for x
    x = 2,228,349,220,956.06/1,719,083.90
  6. Step 6: Final answer
    x = 1,296,242.27

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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.