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Finding the Fourth Proportional to 6,489,884.64, 8,958,798.54 and 4,043,704.28

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Solution

The fourth proportional to 6,489,884.64, 8,958,798.54 and 4,043,704.28 is: 5,582,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489,884.64 : 8,958,798.54 = 4,043,704.28 : x
  2. Step 2: Convert to fraction form
    6,489,884.64/8,958,798.54 = 4,043,704.28/x
  3. Step 3: Cross multiply
    6,489,884.64x = 8,958,798.54 × 4,043,704.28
  4. Step 4: Simplify right side
    6,489,884.64x = 36,226,732,042,024.54
  5. Step 5: Solve for x
    x = 36,226,732,042,024.54/6,489,884.64
  6. Step 6: Final answer
    x = 5,582,030.20

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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.