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Finding the Fourth Proportional to 768,967.43, 1,053,467.88 and 740,216.48

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Solution

The fourth proportional to 768,967.43, 1,053,467.88 and 740,216.48 is: 1,014,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,967.43 : 1,053,467.88 = 740,216.48 : x
  2. Step 2: Convert to fraction form
    768,967.43/1,053,467.88 = 740,216.48/x
  3. Step 3: Cross multiply
    768,967.43x = 1,053,467.88 × 740,216.48
  4. Step 4: Simplify right side
    768,967.43x = 779,794,277,883.51
  5. Step 5: Solve for x
    x = 779,794,277,883.51/768,967.43
  6. Step 6: Final answer
    x = 1,014,079.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.