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Finding the Fourth Proportional to 469,636.20, 703,676.70 and 399,652.20

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Solution

The fourth proportional to 469,636.20, 703,676.70 and 399,652.20 is: 598,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,636.20 : 703,676.70 = 399,652.20 : x
  2. Step 2: Convert to fraction form
    469,636.20/703,676.70 = 399,652.20/x
  3. Step 3: Cross multiply
    469,636.20x = 703,676.70 × 399,652.20
  4. Step 4: Simplify right side
    469,636.20x = 281,225,941,243.74
  5. Step 5: Solve for x
    x = 281,225,941,243.74/469,636.20
  6. Step 6: Final answer
    x = 598,816.58

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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.