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Finding the Fourth Proportional to 545,825.60, 818,738.40 and 534,161.60

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Solution

The fourth proportional to 545,825.60, 818,738.40 and 534,161.60 is: 801,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,825.60 : 818,738.40 = 534,161.60 : x
  2. Step 2: Convert to fraction form
    545,825.60/818,738.40 = 534,161.60/x
  3. Step 3: Cross multiply
    545,825.60x = 818,738.40 × 534,161.60
  4. Step 4: Simplify right side
    545,825.60x = 437,338,613,725.44
  5. Step 5: Solve for x
    x = 437,338,613,725.44/545,825.60
  6. Step 6: Final answer
    x = 801,242.40

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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.