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Finding the Fourth Proportional to 455,601.16, 683,012.70 and 322,061.32

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Solution

The fourth proportional to 455,601.16, 683,012.70 and 322,061.32 is: 482,816.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,601.16 : 683,012.70 = 322,061.32 : x
  2. Step 2: Convert to fraction form
    455,601.16/683,012.70 = 322,061.32/x
  3. Step 3: Cross multiply
    455,601.16x = 683,012.70 × 322,061.32
  4. Step 4: Simplify right side
    455,601.16x = 219,971,971,738.76
  5. Step 5: Solve for x
    x = 219,971,971,738.76/455,601.16
  6. Step 6: Final answer
    x = 482,816.97

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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.