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Finding the Fourth Proportional to 1,017,277.60, 1,523,583.60 and 993,949.60

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Solution

The fourth proportional to 1,017,277.60, 1,523,583.60 and 993,949.60 is: 1,488,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017,277.60 : 1,523,583.60 = 993,949.60 : x
  2. Step 2: Convert to fraction form
    1,017,277.60/1,523,583.60 = 993,949.60/x
  3. Step 3: Cross multiply
    1,017,277.60x = 1,523,583.60 × 993,949.60
  4. Step 4: Simplify right side
    1,017,277.60x = 1,514,365,309,786.56
  5. Step 5: Solve for x
    x = 1,514,365,309,786.56/1,017,277.60
  6. Step 6: Final answer
    x = 1,488,645.10

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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.