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Finding the Fourth Proportional to 558,183.73, 770,270.29 and 316,482.64

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Solution

The fourth proportional to 558,183.73, 770,270.29 and 316,482.64 is: 436,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,183.73 : 770,270.29 = 316,482.64 : x
  2. Step 2: Convert to fraction form
    558,183.73/770,270.29 = 316,482.64/x
  3. Step 3: Cross multiply
    558,183.73x = 770,270.29 × 316,482.64
  4. Step 4: Simplify right side
    558,183.73x = 243,777,171,041.41
  5. Step 5: Solve for x
    x = 243,777,171,041.41/558,183.73
  6. Step 6: Final answer
    x = 436,732.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.