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Finding the Fourth Proportional to 553,778.20, 830,667.30 and 341,201.80

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Solution

The fourth proportional to 553,778.20, 830,667.30 and 341,201.80 is: 511,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,778.20 : 830,667.30 = 341,201.80 : x
  2. Step 2: Convert to fraction form
    553,778.20/830,667.30 = 341,201.80/x
  3. Step 3: Cross multiply
    553,778.20x = 830,667.30 × 341,201.80
  4. Step 4: Simplify right side
    553,778.20x = 283,425,177,961.14
  5. Step 5: Solve for x
    x = 283,425,177,961.14/553,778.20
  6. Step 6: Final answer
    x = 511,802.70

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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.