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Finding the Fourth Proportional to 876,596.60, 1,314,387.84 and 343,493.48

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Solution

The fourth proportional to 876,596.60, 1,314,387.84 and 343,493.48 is: 515,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,596.60 : 1,314,387.84 = 343,493.48 : x
  2. Step 2: Convert to fraction form
    876,596.60/1,314,387.84 = 343,493.48/x
  3. Step 3: Cross multiply
    876,596.60x = 1,314,387.84 × 343,493.48
  4. Step 4: Simplify right side
    876,596.60x = 451,483,653,231.28
  5. Step 5: Solve for x
    x = 451,483,653,231.28/876,596.60
  6. Step 6: Final answer
    x = 515,041.53

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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.