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Finding the Fourth Proportional to 479,636.82, 719,526.32 and 159,684.20

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Solution

The fourth proportional to 479,636.82, 719,526.32 and 159,684.20 is: 239,549.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,636.82 : 719,526.32 = 159,684.20 : x
  2. Step 2: Convert to fraction form
    479,636.82/719,526.32 = 159,684.20/x
  3. Step 3: Cross multiply
    479,636.82x = 719,526.32 × 159,684.20
  4. Step 4: Simplify right side
    479,636.82x = 114,896,980,392.09
  5. Step 5: Solve for x
    x = 114,896,980,392.09/479,636.82
  6. Step 6: Final answer
    x = 239,549.96

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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.