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Finding the Fourth Proportional to 449,725.37, 674,395.98 and 260,316.48

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Solution

The fourth proportional to 449,725.37, 674,395.98 and 260,316.48 is: 390,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,725.37 : 674,395.98 = 260,316.48 : x
  2. Step 2: Convert to fraction form
    449,725.37/674,395.98 = 260,316.48/x
  3. Step 3: Cross multiply
    449,725.37x = 674,395.98 × 260,316.48
  4. Step 4: Simplify right side
    449,725.37x = 175,556,389,192.55
  5. Step 5: Solve for x
    x = 175,556,389,192.55/449,725.37
  6. Step 6: Final answer
    x = 390,363.55

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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.