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Finding the Fourth Proportional to 3,968,602.64, 5,476,512.96 and 2,337,078.80

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Solution

The fourth proportional to 3,968,602.64, 5,476,512.96 and 2,337,078.80 is: 3,225,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968,602.64 : 5,476,512.96 = 2,337,078.80 : x
  2. Step 2: Convert to fraction form
    3,968,602.64/5,476,512.96 = 2,337,078.80/x
  3. Step 3: Cross multiply
    3,968,602.64x = 5,476,512.96 × 2,337,078.80
  4. Step 4: Simplify right side
    3,968,602.64x = 12,799,042,336,741.25
  5. Step 5: Solve for x
    x = 12,799,042,336,741.25/3,968,602.64
  6. Step 6: Final answer
    x = 3,225,075.30

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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.