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Finding the Fourth Proportional to 374,616.40, 561,924.60 and 248,645.20

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Solution

The fourth proportional to 374,616.40, 561,924.60 and 248,645.20 is: 372,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,616.40 : 561,924.60 = 248,645.20 : x
  2. Step 2: Convert to fraction form
    374,616.40/561,924.60 = 248,645.20/x
  3. Step 3: Cross multiply
    374,616.40x = 561,924.60 × 248,645.20
  4. Step 4: Simplify right side
    374,616.40x = 139,719,854,551.92
  5. Step 5: Solve for x
    x = 139,719,854,551.92/374,616.40
  6. Step 6: Final answer
    x = 372,967.80

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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.