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Finding the Fourth Proportional to 330,084.64, 494,484.52 and 243,372.59

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Solution

The fourth proportional to 330,084.64, 494,484.52 and 243,372.59 is: 364,585.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,084.64 : 494,484.52 = 243,372.59 : x
  2. Step 2: Convert to fraction form
    330,084.64/494,484.52 = 243,372.59/x
  3. Step 3: Cross multiply
    330,084.64x = 494,484.52 × 243,372.59
  4. Step 4: Simplify right side
    330,084.64x = 120,343,978,347.31
  5. Step 5: Solve for x
    x = 120,343,978,347.31/330,084.64
  6. Step 6: Final answer
    x = 364,585.21

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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.