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Finding the Fourth Proportional to 348,327.40, 521,108.70 and 302,093.80

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Solution

The fourth proportional to 348,327.40, 521,108.70 and 302,093.80 is: 451,941.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,327.40 : 521,108.70 = 302,093.80 : x
  2. Step 2: Convert to fraction form
    348,327.40/521,108.70 = 302,093.80/x
  3. Step 3: Cross multiply
    348,327.40x = 521,108.70 × 302,093.80
  4. Step 4: Simplify right side
    348,327.40x = 157,423,707,396.06
  5. Step 5: Solve for x
    x = 157,423,707,396.06/348,327.40
  6. Step 6: Final answer
    x = 451,941.79

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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.