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Finding the Fourth Proportional to 375,469.16, 562,685.34 and 305,485.16

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Solution

The fourth proportional to 375,469.16, 562,685.34 and 305,485.16 is: 457,805.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,469.16 : 562,685.34 = 305,485.16 : x
  2. Step 2: Convert to fraction form
    375,469.16/562,685.34 = 305,485.16/x
  3. Step 3: Cross multiply
    375,469.16x = 562,685.34 × 305,485.16
  4. Step 4: Simplify right side
    375,469.16x = 171,892,021,119.55
  5. Step 5: Solve for x
    x = 171,892,021,119.55/375,469.16
  6. Step 6: Final answer
    x = 457,805.96

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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.