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Finding the Fourth Proportional to 374,467.20, 561,700.80 and 356,035.20

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Solution

The fourth proportional to 374,467.20, 561,700.80 and 356,035.20 is: 534,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,467.20 : 561,700.80 = 356,035.20 : x
  2. Step 2: Convert to fraction form
    374,467.20/561,700.80 = 356,035.20/x
  3. Step 3: Cross multiply
    374,467.20x = 561,700.80 × 356,035.20
  4. Step 4: Simplify right side
    374,467.20x = 199,985,256,668.16
  5. Step 5: Solve for x
    x = 199,985,256,668.16/374,467.20
  6. Step 6: Final answer
    x = 534,052.80

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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.