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Finding the Fourth Proportional to 353,611.20, 529,833.60 and 294,124.80

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Solution

The fourth proportional to 353,611.20, 529,833.60 and 294,124.80 is: 440,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,611.20 : 529,833.60 = 294,124.80 : x
  2. Step 2: Convert to fraction form
    353,611.20/529,833.60 = 294,124.80/x
  3. Step 3: Cross multiply
    353,611.20x = 529,833.60 × 294,124.80
  4. Step 4: Simplify right side
    353,611.20x = 155,837,201,633.28
  5. Step 5: Solve for x
    x = 155,837,201,633.28/353,611.20
  6. Step 6: Final answer
    x = 440,702.11

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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.