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Finding the Fourth Proportional to 1,787,786.44, 2,467,193.88 and 972,045.16

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Solution

The fourth proportional to 1,787,786.44, 2,467,193.88 and 972,045.16 is: 1,341,448.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,786.44 : 2,467,193.88 = 972,045.16 : x
  2. Step 2: Convert to fraction form
    1,787,786.44/2,467,193.88 = 972,045.16/x
  3. Step 3: Cross multiply
    1,787,786.44x = 2,467,193.88 × 972,045.16
  4. Step 4: Simplify right side
    1,787,786.44x = 2,398,223,869,835.62
  5. Step 5: Solve for x
    x = 2,398,223,869,835.62/1,787,786.44
  6. Step 6: Final answer
    x = 1,341,448.74

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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.