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Finding the Fourth Proportional to 374,462.40, 561,693.60 and 269,486.40

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Solution

The fourth proportional to 374,462.40, 561,693.60 and 269,486.40 is: 404,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,462.40 : 561,693.60 = 269,486.40 : x
  2. Step 2: Convert to fraction form
    374,462.40/561,693.60 = 269,486.40/x
  3. Step 3: Cross multiply
    374,462.40x = 561,693.60 × 269,486.40
  4. Step 4: Simplify right side
    374,462.40x = 151,368,786,167.04
  5. Step 5: Solve for x
    x = 151,368,786,167.04/374,462.40
  6. Step 6: Final answer
    x = 404,229.60

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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.