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Finding the Fourth Proportional to 362,654.20, 543,426.90 and 243,885.88

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Solution

The fourth proportional to 362,654.20, 543,426.90 and 243,885.88 is: 365,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,654.20 : 543,426.90 = 243,885.88 : x
  2. Step 2: Convert to fraction form
    362,654.20/543,426.90 = 243,885.88/x
  3. Step 3: Cross multiply
    362,654.20x = 543,426.90 × 243,885.88
  4. Step 4: Simplify right side
    362,654.20x = 132,534,147,722.17
  5. Step 5: Solve for x
    x = 132,534,147,722.17/362,654.20
  6. Step 6: Final answer
    x = 365,455.98

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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.