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Finding the Fourth Proportional to 529,737.40, 793,293.90 and 339,905.80

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Solution

The fourth proportional to 529,737.40, 793,293.90 and 339,905.80 is: 509,016.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,737.40 : 793,293.90 = 339,905.80 : x
  2. Step 2: Convert to fraction form
    529,737.40/793,293.90 = 339,905.80/x
  3. Step 3: Cross multiply
    529,737.40x = 793,293.90 × 339,905.80
  4. Step 4: Simplify right side
    529,737.40x = 269,645,197,714.62
  5. Step 5: Solve for x
    x = 269,645,197,714.62/529,737.40
  6. Step 6: Final answer
    x = 509,016.73

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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.