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Finding the Fourth Proportional to 529,699.34, 730,969.70 and 300,277.92

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Solution

The fourth proportional to 529,699.34, 730,969.70 and 300,277.92 is: 414,374.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,699.34 : 730,969.70 = 300,277.92 : x
  2. Step 2: Convert to fraction form
    529,699.34/730,969.70 = 300,277.92/x
  3. Step 3: Cross multiply
    529,699.34x = 730,969.70 × 300,277.92
  4. Step 4: Simplify right side
    529,699.34x = 219,494,061,099.02
  5. Step 5: Solve for x
    x = 219,494,061,099.02/529,699.34
  6. Step 6: Final answer
    x = 414,374.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.