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Finding the Fourth Proportional to 469,598.48, 648,325.16 and 308,738.96

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Solution

The fourth proportional to 469,598.48, 648,325.16 and 308,738.96 is: 426,243.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,598.48 : 648,325.16 = 308,738.96 : x
  2. Step 2: Convert to fraction form
    469,598.48/648,325.16 = 308,738.96/x
  3. Step 3: Cross multiply
    469,598.48x = 648,325.16 × 308,738.96
  4. Step 4: Simplify right side
    469,598.48x = 200,163,235,640.23
  5. Step 5: Solve for x
    x = 200,163,235,640.23/469,598.48
  6. Step 6: Final answer
    x = 426,243.36

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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.