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Finding the Fourth Proportional to 1,230,486.10, 1,718,481.50 and 1,230,486.10

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Solution

The fourth proportional to 1,230,486.10, 1,718,481.50 and 1,230,486.10 is: 1,718,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,486.10 : 1,718,481.50 = 1,230,486.10 : x
  2. Step 2: Convert to fraction form
    1,230,486.10/1,718,481.50 = 1,230,486.10/x
  3. Step 3: Cross multiply
    1,230,486.10x = 1,718,481.50 × 1,230,486.10
  4. Step 4: Simplify right side
    1,230,486.10x = 2,114,567,598,857.15
  5. Step 5: Solve for x
    x = 2,114,567,598,857.15/1,230,486.10
  6. Step 6: Final answer
    x = 1,718,481.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.