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Finding the Fourth Proportional to 374,615.30, 561,922.95 and 262,422.20

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Solution

The fourth proportional to 374,615.30, 561,922.95 and 262,422.20 is: 393,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,615.30 : 561,922.95 = 262,422.20 : x
  2. Step 2: Convert to fraction form
    374,615.30/561,922.95 = 262,422.20/x
  3. Step 3: Cross multiply
    374,615.30x = 561,922.95 × 262,422.20
  4. Step 4: Simplify right side
    374,615.30x = 147,461,056,769.49
  5. Step 5: Solve for x
    x = 147,461,056,769.49/374,615.30
  6. Step 6: Final answer
    x = 393,633.30

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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.