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Finding the Fourth Proportional to 374,505.30, 562,110.30 and 197,139.60

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Solution

The fourth proportional to 374,505.30, 562,110.30 and 197,139.60 is: 295,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,505.30 : 562,110.30 = 197,139.60 : x
  2. Step 2: Convert to fraction form
    374,505.30/562,110.30 = 197,139.60/x
  3. Step 3: Cross multiply
    374,505.30x = 562,110.30 × 197,139.60
  4. Step 4: Simplify right side
    374,505.30x = 110,814,199,697.88
  5. Step 5: Solve for x
    x = 110,814,199,697.88/374,505.30
  6. Step 6: Final answer
    x = 295,894.88

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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.