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Finding the Fourth Proportional to 6,659,646.72, 9,190,336.32 and 3,603,860.16

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Solution

The fourth proportional to 6,659,646.72, 9,190,336.32 and 3,603,860.16 is: 4,973,339.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659,646.72 : 9,190,336.32 = 3,603,860.16 : x
  2. Step 2: Convert to fraction form
    6,659,646.72/9,190,336.32 = 3,603,860.16/x
  3. Step 3: Cross multiply
    6,659,646.72x = 9,190,336.32 × 3,603,860.16
  4. Step 4: Simplify right side
    6,659,646.72x = 33,120,686,920,649.01
  5. Step 5: Solve for x
    x = 33,120,686,920,649.01/6,659,646.72
  6. Step 6: Final answer
    x = 4,973,339.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.