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Finding the Fourth Proportional to 603,825.87, 904,935.07 and 319,455.73

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Solution

The fourth proportional to 603,825.87, 904,935.07 and 319,455.73 is: 478,758.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,825.87 : 904,935.07 = 319,455.73 : x
  2. Step 2: Convert to fraction form
    603,825.87/904,935.07 = 319,455.73/x
  3. Step 3: Cross multiply
    603,825.87x = 904,935.07 × 319,455.73
  4. Step 4: Simplify right side
    603,825.87x = 289,086,694,919.94
  5. Step 5: Solve for x
    x = 289,086,694,919.94/603,825.87
  6. Step 6: Final answer
    x = 478,758.38

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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.