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Finding the Fourth Proportional to 519,598.80, 779,419.80 and 164,604.96

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Solution

The fourth proportional to 519,598.80, 779,419.80 and 164,604.96 is: 246,914.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,598.80 : 779,419.80 = 164,604.96 : x
  2. Step 2: Convert to fraction form
    519,598.80/779,419.80 = 164,604.96/x
  3. Step 3: Cross multiply
    519,598.80x = 779,419.80 × 164,604.96
  4. Step 4: Simplify right side
    519,598.80x = 128,296,365,002.21
  5. Step 5: Solve for x
    x = 128,296,365,002.21/519,598.80
  6. Step 6: Final answer
    x = 246,914.28

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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.