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Finding the Fourth Proportional to 6,503,388.15, 8,975,226.75 and 3,603,688.59

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Solution

The fourth proportional to 6,503,388.15, 8,975,226.75 and 3,603,688.59 is: 4,973,395.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,503,388.15 : 8,975,226.75 = 3,603,688.59 : x
  2. Step 2: Convert to fraction form
    6,503,388.15/8,975,226.75 = 3,603,688.59/x
  3. Step 3: Cross multiply
    6,503,388.15x = 8,975,226.75 × 3,603,688.59
  4. Step 4: Simplify right side
    6,503,388.15x = 32,343,922,231,637.78
  5. Step 5: Solve for x
    x = 32,343,922,231,637.78/6,503,388.15
  6. Step 6: Final answer
    x = 4,973,395.63

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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.