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Finding the Fourth Proportional to 479,636.32, 719,525.56 and 159,683.69

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Solution

The fourth proportional to 479,636.32, 719,525.56 and 159,683.69 is: 239,549.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,636.32 : 719,525.56 = 159,683.69 : x
  2. Step 2: Convert to fraction form
    479,636.32/719,525.56 = 159,683.69/x
  3. Step 3: Cross multiply
    479,636.32x = 719,525.56 × 159,683.69
  4. Step 4: Simplify right side
    479,636.32x = 114,896,496,470.12
  5. Step 5: Solve for x
    x = 114,896,496,470.12/479,636.32
  6. Step 6: Final answer
    x = 239,549.20

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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.