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Finding the Fourth Proportional to 469,893.56, 648,453.72 and 255,033.60

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Solution

The fourth proportional to 469,893.56, 648,453.72 and 255,033.60 is: 351,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,893.56 : 648,453.72 = 255,033.60 : x
  2. Step 2: Convert to fraction form
    469,893.56/648,453.72 = 255,033.60/x
  3. Step 3: Cross multiply
    469,893.56x = 648,453.72 × 255,033.60
  4. Step 4: Simplify right side
    469,893.56x = 165,377,486,644.99
  5. Step 5: Solve for x
    x = 165,377,486,644.99/469,893.56
  6. Step 6: Final answer
    x = 351,946.70

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1.5x scale

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.