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Finding the Fourth Proportional to 4,610,643.75, 6,916,297.78 and 1,770,755.91

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Solution

The fourth proportional to 4,610,643.75, 6,916,297.78 and 1,770,755.91 is: 2,656,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,610,643.75 : 6,916,297.78 = 1,770,755.91 : x
  2. Step 2: Convert to fraction form
    4,610,643.75/6,916,297.78 = 1,770,755.91/x
  3. Step 3: Cross multiply
    4,610,643.75x = 6,916,297.78 × 1,770,755.91
  4. Step 4: Simplify right side
    4,610,643.75x = 12,247,075,169,254.88
  5. Step 5: Solve for x
    x = 12,247,075,169,254.88/4,610,643.75
  6. Step 6: Final answer
    x = 2,656,261.43

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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.