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Finding the Fourth Proportional to 374,492.40, 561,738.60 and 248,521.20

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Solution

The fourth proportional to 374,492.40, 561,738.60 and 248,521.20 is: 372,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,492.40 : 561,738.60 = 248,521.20 : x
  2. Step 2: Convert to fraction form
    374,492.40/561,738.60 = 248,521.20/x
  3. Step 3: Cross multiply
    374,492.40x = 561,738.60 × 248,521.20
  4. Step 4: Simplify right side
    374,492.40x = 139,603,950,958.32
  5. Step 5: Solve for x
    x = 139,603,950,958.32/374,492.40
  6. Step 6: Final answer
    x = 372,781.80

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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.