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Finding the Fourth Proportional to 1,303,015.24, 1,795,914.88 and 866,651.64

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Solution

The fourth proportional to 1,303,015.24, 1,795,914.88 and 866,651.64 is: 1,194,485.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,015.24 : 1,795,914.88 = 866,651.64 : x
  2. Step 2: Convert to fraction form
    1,303,015.24/1,795,914.88 = 866,651.64/x
  3. Step 3: Cross multiply
    1,303,015.24x = 1,795,914.88 × 866,651.64
  4. Step 4: Simplify right side
    1,303,015.24x = 1,556,432,576,052.40
  5. Step 5: Solve for x
    x = 1,556,432,576,052.40/1,303,015.24
  6. Step 6: Final answer
    x = 1,194,485.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.