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Finding the Fourth Proportional to 1,734,934.80, 2,394,209.70 and 970,988.37

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Solution

The fourth proportional to 1,734,934.80, 2,394,209.70 and 970,988.37 is: 1,339,963.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,734,934.80 : 2,394,209.70 = 970,988.37 : x
  2. Step 2: Convert to fraction form
    1,734,934.80/2,394,209.70 = 970,988.37/x
  3. Step 3: Cross multiply
    1,734,934.80x = 2,394,209.70 × 970,988.37
  4. Step 4: Simplify right side
    1,734,934.80x = 2,324,749,774,041.19
  5. Step 5: Solve for x
    x = 2,324,749,774,041.19/1,734,934.80
  6. Step 6: Final answer
    x = 1,339,963.77

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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.