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Finding the Fourth Proportional to 490,667.99, 735,815.18 and 322,143.24

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Solution

The fourth proportional to 490,667.99, 735,815.18 and 322,143.24 is: 483,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,667.99 : 735,815.18 = 322,143.24 : x
  2. Step 2: Convert to fraction form
    490,667.99/735,815.18 = 322,143.24/x
  3. Step 3: Cross multiply
    490,667.99x = 735,815.18 × 322,143.24
  4. Step 4: Simplify right side
    490,667.99x = 237,037,886,931.74
  5. Step 5: Solve for x
    x = 237,037,886,931.74/490,667.99
  6. Step 6: Final answer
    x = 483,092.21

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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.