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Finding the Fourth Proportional to 1,837,678.33, 2,756,520.74 and 715,747.33

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Solution

The fourth proportional to 1,837,678.33, 2,756,520.74 and 715,747.33 is: 1,073,622.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837,678.33 : 2,756,520.74 = 715,747.33 : x
  2. Step 2: Convert to fraction form
    1,837,678.33/2,756,520.74 = 715,747.33/x
  3. Step 3: Cross multiply
    1,837,678.33x = 2,756,520.74 × 715,747.33
  4. Step 4: Simplify right side
    1,837,678.33x = 1,972,972,359,744.62
  5. Step 5: Solve for x
    x = 1,972,972,359,744.62/1,837,678.33
  6. Step 6: Final answer
    x = 1,073,622.26

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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.