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Finding the Fourth Proportional to 343,651, 474,215.58 and 190,679.48

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Solution

The fourth proportional to 343,651, 474,215.58 and 190,679.48 is: 263,125.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,651 : 474,215.58 = 190,679.48 : x
  2. Step 2: Convert to fraction form
    343,651/474,215.58 = 190,679.48/x
  3. Step 3: Cross multiply
    343,651x = 474,215.58 × 190,679.48
  4. Step 4: Simplify right side
    343,651x = 90,423,180,202.30
  5. Step 5: Solve for x
    x = 90,423,180,202.30/343,651
  6. Step 6: Final answer
    x = 263,125.03

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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.