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Finding the Fourth Proportional to 469,599.48, 648,326.54 and 308,739.96

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Solution

The fourth proportional to 469,599.48, 648,326.54 and 308,739.96 is: 426,244.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,599.48 : 648,326.54 = 308,739.96 : x
  2. Step 2: Convert to fraction form
    469,599.48/648,326.54 = 308,739.96/x
  3. Step 3: Cross multiply
    469,599.48x = 648,326.54 × 308,739.96
  4. Step 4: Simplify right side
    469,599.48x = 200,164,310,026.54
  5. Step 5: Solve for x
    x = 200,164,310,026.54/469,599.48
  6. Step 6: Final answer
    x = 426,244.74

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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.