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Finding the Fourth Proportional to 6,294,197.08, 8,685,979.23 and 3,540,886.21

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Solution

The fourth proportional to 6,294,197.08, 8,685,979.23 and 3,540,886.21 is: 4,886,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,294,197.08 : 8,685,979.23 = 3,540,886.21 : x
  2. Step 2: Convert to fraction form
    6,294,197.08/8,685,979.23 = 3,540,886.21/x
  3. Step 3: Cross multiply
    6,294,197.08x = 8,685,979.23 × 3,540,886.21
  4. Step 4: Simplify right side
    6,294,197.08x = 30,756,064,075,853.42
  5. Step 5: Solve for x
    x = 30,756,064,075,853.42/6,294,197.08
  6. Step 6: Final answer
    x = 4,886,415.80

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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.