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Finding the Fourth Proportional to 2,154,906.98, 2,973,770.64 and 1,237,195.32

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Solution

The fourth proportional to 2,154,906.98, 2,973,770.64 and 1,237,195.32 is: 1,707,328.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,906.98 : 2,973,770.64 = 1,237,195.32 : x
  2. Step 2: Convert to fraction form
    2,154,906.98/2,973,770.64 = 1,237,195.32/x
  3. Step 3: Cross multiply
    2,154,906.98x = 2,973,770.64 × 1,237,195.32
  4. Step 4: Simplify right side
    2,154,906.98x = 3,679,135,118,561.41
  5. Step 5: Solve for x
    x = 3,679,135,118,561.41/2,154,906.98
  6. Step 6: Final answer
    x = 1,707,328.97

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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.