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Finding the Fourth Proportional to 399,367.32, 598,884.60 and 162,549.24

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Solution

The fourth proportional to 399,367.32, 598,884.60 and 162,549.24 is: 243,756.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,367.32 : 598,884.60 = 162,549.24 : x
  2. Step 2: Convert to fraction form
    399,367.32/598,884.60 = 162,549.24/x
  3. Step 3: Cross multiply
    399,367.32x = 598,884.60 × 162,549.24
  4. Step 4: Simplify right side
    399,367.32x = 97,348,236,577.70
  5. Step 5: Solve for x
    x = 97,348,236,577.70/399,367.32
  6. Step 6: Final answer
    x = 243,756.14

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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.