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Finding the Fourth Proportional to 6,385,846.60, 9,578,769.90 and 2,597,379.40

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Solution

The fourth proportional to 6,385,846.60, 9,578,769.90 and 2,597,379.40 is: 3,896,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385,846.60 : 9,578,769.90 = 2,597,379.40 : x
  2. Step 2: Convert to fraction form
    6,385,846.60/9,578,769.90 = 2,597,379.40/x
  3. Step 3: Cross multiply
    6,385,846.60x = 9,578,769.90 × 2,597,379.40
  4. Step 4: Simplify right side
    6,385,846.60x = 24,879,699,615,600.06
  5. Step 5: Solve for x
    x = 24,879,699,615,600.06/6,385,846.60
  6. Step 6: Final answer
    x = 3,896,069.10

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Similar ratio
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1.5x scale

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.