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Finding the Fourth Proportional to 343,503.32, 474,062.10 and 190,556.60

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Solution

The fourth proportional to 343,503.32, 474,062.10 and 190,556.60 is: 262,983.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,503.32 : 474,062.10 = 190,556.60 : x
  2. Step 2: Convert to fraction form
    343,503.32/474,062.10 = 190,556.60/x
  3. Step 3: Cross multiply
    343,503.32x = 474,062.10 × 190,556.60
  4. Step 4: Simplify right side
    343,503.32x = 90,335,661,964.86
  5. Step 5: Solve for x
    x = 90,335,661,964.86/343,503.32
  6. Step 6: Final answer
    x = 262,983.37

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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.