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Finding the Fourth Proportional to 672,255, 927,731.70 and 370,468.44

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Solution

The fourth proportional to 672,255, 927,731.70 and 370,468.44 is: 511,257.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,255 : 927,731.70 = 370,468.44 : x
  2. Step 2: Convert to fraction form
    672,255/927,731.70 = 370,468.44/x
  3. Step 3: Cross multiply
    672,255x = 927,731.70 × 370,468.44
  4. Step 4: Simplify right side
    672,255x = 343,695,315,637.55
  5. Step 5: Solve for x
    x = 343,695,315,637.55/672,255
  6. Step 6: Final answer
    x = 511,257.36

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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.