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Finding the Fourth Proportional to 831,594.60, 1,245,059.10 and 808,266.60

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Solution

The fourth proportional to 831,594.60, 1,245,059.10 and 808,266.60 is: 1,210,132.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,594.60 : 1,245,059.10 = 808,266.60 : x
  2. Step 2: Convert to fraction form
    831,594.60/1,245,059.10 = 808,266.60/x
  3. Step 3: Cross multiply
    831,594.60x = 1,245,059.10 × 808,266.60
  4. Step 4: Simplify right side
    831,594.60x = 1,006,339,685,556.06
  5. Step 5: Solve for x
    x = 1,006,339,685,556.06/831,594.60
  6. Step 6: Final answer
    x = 1,210,132.54

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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.