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Finding the Fourth Proportional to 343,515.60, 474,054.37 and 190,563.81

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Solution

The fourth proportional to 343,515.60, 474,054.37 and 190,563.81 is: 262,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,515.60 : 474,054.37 = 190,563.81 : x
  2. Step 2: Convert to fraction form
    343,515.60/474,054.37 = 190,563.81/x
  3. Step 3: Cross multiply
    343,515.60x = 474,054.37 × 190,563.81
  4. Step 4: Simplify right side
    343,515.60x = 90,337,605,712.16
  5. Step 5: Solve for x
    x = 90,337,605,712.16/343,515.60
  6. Step 6: Final answer
    x = 262,979.63

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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.