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Finding the Fourth Proportional to 6,645,709.92, 9,968,563.74 and 1,597,020.48

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Solution

The fourth proportional to 6,645,709.92, 9,968,563.74 and 1,597,020.48 is: 2,395,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,645,709.92 : 9,968,563.74 = 1,597,020.48 : x
  2. Step 2: Convert to fraction form
    6,645,709.92/9,968,563.74 = 1,597,020.48/x
  3. Step 3: Cross multiply
    6,645,709.92x = 9,968,563.74 × 1,597,020.48
  4. Step 4: Simplify right side
    6,645,709.92x = 15,920,000,448,965.39
  5. Step 5: Solve for x
    x = 15,920,000,448,965.39/6,645,709.92
  6. Step 6: Final answer
    x = 2,395,530.45

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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.