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Finding the Fourth Proportional to 1,891,742.80, 2,837,639.16 and 629,570.64

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Solution

The fourth proportional to 1,891,742.80, 2,837,639.16 and 629,570.64 is: 944,364.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,742.80 : 2,837,639.16 = 629,570.64 : x
  2. Step 2: Convert to fraction form
    1,891,742.80/2,837,639.16 = 629,570.64/x
  3. Step 3: Cross multiply
    1,891,742.80x = 2,837,639.16 × 629,570.64
  4. Step 4: Simplify right side
    1,891,742.80x = 1,786,494,302,050.26
  5. Step 5: Solve for x
    x = 1,786,494,302,050.26/1,891,742.80
  6. Step 6: Final answer
    x = 944,364.27

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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.