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Finding the Fourth Proportional to 561,307.59, 842,170.50 and 336,829.05

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Solution

The fourth proportional to 561,307.59, 842,170.50 and 336,829.05 is: 505,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,307.59 : 842,170.50 = 336,829.05 : x
  2. Step 2: Convert to fraction form
    561,307.59/842,170.50 = 336,829.05/x
  3. Step 3: Cross multiply
    561,307.59x = 842,170.50 × 336,829.05
  4. Step 4: Simplify right side
    561,307.59x = 283,667,489,453.03
  5. Step 5: Solve for x
    x = 283,667,489,453.03/561,307.59
  6. Step 6: Final answer
    x = 505,369.06

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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.