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Finding the Fourth Proportional to 6,368,630.64, 8,788,478.25 and 3,467,957.88

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Solution

The fourth proportional to 6,368,630.64, 8,788,478.25 and 3,467,957.88 is: 4,785,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,368,630.64 : 8,788,478.25 = 3,467,957.88 : x
  2. Step 2: Convert to fraction form
    6,368,630.64/8,788,478.25 = 3,467,957.88/x
  3. Step 3: Cross multiply
    6,368,630.64x = 8,788,478.25 × 3,467,957.88
  4. Step 4: Simplify right side
    6,368,630.64x = 30,478,072,400,296.11
  5. Step 5: Solve for x
    x = 30,478,072,400,296.11/6,368,630.64
  6. Step 6: Final answer
    x = 4,785,655.52

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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.