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Finding the Fourth Proportional to 294,336.60, 441,504.90 and 72,720.60

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Solution

The fourth proportional to 294,336.60, 441,504.90 and 72,720.60 is: 109,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,336.60 : 441,504.90 = 72,720.60 : x
  2. Step 2: Convert to fraction form
    294,336.60/441,504.90 = 72,720.60/x
  3. Step 3: Cross multiply
    294,336.60x = 441,504.90 × 72,720.60
  4. Step 4: Simplify right side
    294,336.60x = 32,106,501,230.94
  5. Step 5: Solve for x
    x = 32,106,501,230.94/294,336.60
  6. Step 6: Final answer
    x = 109,080.90

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1.5x scale

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.