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Finding the Fourth Proportional to 479,578.88, 719,478.48 and 164,035.28

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Solution

The fourth proportional to 479,578.88, 719,478.48 and 164,035.28 is: 246,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,578.88 : 719,478.48 = 164,035.28 : x
  2. Step 2: Convert to fraction form
    479,578.88/719,478.48 = 164,035.28/x
  3. Step 3: Cross multiply
    479,578.88x = 719,478.48 × 164,035.28
  4. Step 4: Simplify right side
    479,578.88x = 118,019,853,920.77
  5. Step 5: Solve for x
    x = 118,019,853,920.77/479,578.88
  6. Step 6: Final answer
    x = 246,090.60

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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.