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Finding the Fourth Proportional to 6,240,890.76, 8,612,481.08 and 3,379,322.76

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Solution

The fourth proportional to 6,240,890.76, 8,612,481.08 and 3,379,322.76 is: 4,663,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240,890.76 : 8,612,481.08 = 3,379,322.76 : x
  2. Step 2: Convert to fraction form
    6,240,890.76/8,612,481.08 = 3,379,322.76/x
  3. Step 3: Cross multiply
    6,240,890.76x = 8,612,481.08 × 3,379,322.76
  4. Step 4: Simplify right side
    6,240,890.76x = 29,104,353,333,713.38
  5. Step 5: Solve for x
    x = 29,104,353,333,713.38/6,240,890.76
  6. Step 6: Final answer
    x = 4,663,493.47

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Double scale
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1.5x scale

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.