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Finding the Fourth Proportional to 4,418,780.80, 6,616,361.40 and 4,418,780.80

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Solution

The fourth proportional to 4,418,780.80, 6,616,361.40 and 4,418,780.80 is: 6,616,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,418,780.80 : 6,616,361.40 = 4,418,780.80 : x
  2. Step 2: Convert to fraction form
    4,418,780.80/6,616,361.40 = 4,418,780.80/x
  3. Step 3: Cross multiply
    4,418,780.80x = 6,616,361.40 × 4,418,780.80
  4. Step 4: Simplify right side
    4,418,780.80x = 29,236,250,720,181.12
  5. Step 5: Solve for x
    x = 29,236,250,720,181.12/4,418,780.80
  6. Step 6: Final answer
    x = 6,616,361.40

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1.5x scale

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.