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Finding the Fourth Proportional to 6,643,585.80, 9,965,378.70 and 2,384,184.60

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Solution

The fourth proportional to 6,643,585.80, 9,965,378.70 and 2,384,184.60 is: 3,576,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,585.80 : 9,965,378.70 = 2,384,184.60 : x
  2. Step 2: Convert to fraction form
    6,643,585.80/9,965,378.70 = 2,384,184.60/x
  3. Step 3: Cross multiply
    6,643,585.80x = 9,965,378.70 × 2,384,184.60
  4. Step 4: Simplify right side
    6,643,585.80x = 23,759,302,429,708.02
  5. Step 5: Solve for x
    x = 23,759,302,429,708.02/6,643,585.80
  6. Step 6: Final answer
    x = 3,576,276.90

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Similar ratio
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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.