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Finding the Fourth Proportional to 374,046.30, 561,421.80 and 196,680.60

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Solution

The fourth proportional to 374,046.30, 561,421.80 and 196,680.60 is: 295,206.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,046.30 : 561,421.80 = 196,680.60 : x
  2. Step 2: Convert to fraction form
    374,046.30/561,421.80 = 196,680.60/x
  3. Step 3: Cross multiply
    374,046.30x = 561,421.80 × 196,680.60
  4. Step 4: Simplify right side
    374,046.30x = 110,420,776,477.08
  5. Step 5: Solve for x
    x = 110,420,776,477.08/374,046.30
  6. Step 6: Final answer
    x = 295,206.17

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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.