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Finding the Fourth Proportional to 449,843.18, 674,875.47 and 316,982.93

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Solution

The fourth proportional to 449,843.18, 674,875.47 and 316,982.93 is: 475,552.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,843.18 : 674,875.47 = 316,982.93 : x
  2. Step 2: Convert to fraction form
    449,843.18/674,875.47 = 316,982.93/x
  3. Step 3: Cross multiply
    449,843.18x = 674,875.47 × 316,982.93
  4. Step 4: Simplify right side
    449,843.18x = 213,924,003,865.73
  5. Step 5: Solve for x
    x = 213,924,003,865.73/449,843.18
  6. Step 6: Final answer
    x = 475,552.40

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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.