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Finding the Fourth Proportional to 362,218.60, 543,327.90 and 355,997.80

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Solution

The fourth proportional to 362,218.60, 543,327.90 and 355,997.80 is: 533,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,218.60 : 543,327.90 = 355,997.80 : x
  2. Step 2: Convert to fraction form
    362,218.60/543,327.90 = 355,997.80/x
  3. Step 3: Cross multiply
    362,218.60x = 543,327.90 × 355,997.80
  4. Step 4: Simplify right side
    362,218.60x = 193,423,537,078.62
  5. Step 5: Solve for x
    x = 193,423,537,078.62/362,218.60
  6. Step 6: Final answer
    x = 533,996.70

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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.