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Finding the Fourth Proportional to 405,553.59, 608,508.21 and 192,475.40

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Solution

The fourth proportional to 405,553.59, 608,508.21 and 192,475.40 is: 288,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,553.59 : 608,508.21 = 192,475.40 : x
  2. Step 2: Convert to fraction form
    405,553.59/608,508.21 = 192,475.40/x
  3. Step 3: Cross multiply
    405,553.59x = 608,508.21 × 192,475.40
  4. Step 4: Simplify right side
    405,553.59x = 117,122,858,080.49
  5. Step 5: Solve for x
    x = 117,122,858,080.49/405,553.59
  6. Step 6: Final answer
    x = 288,797.49

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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.