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Finding the Fourth Proportional to 450,313.23, 676,242.59 and 399,826.34

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Solution

The fourth proportional to 450,313.23, 676,242.59 and 399,826.34 is: 600,425.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,313.23 : 676,242.59 = 399,826.34 : x
  2. Step 2: Convert to fraction form
    450,313.23/676,242.59 = 399,826.34/x
  3. Step 3: Cross multiply
    450,313.23x = 676,242.59 × 399,826.34
  4. Step 4: Simplify right side
    450,313.23x = 270,379,594,331.48
  5. Step 5: Solve for x
    x = 270,379,594,331.48/450,313.23
  6. Step 6: Final answer
    x = 600,425.61

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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.