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Finding the Fourth Proportional to 579,193.40, 798,812.96 and 407,679.14

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Solution

The fourth proportional to 579,193.40, 798,812.96 and 407,679.14 is: 562,263.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,193.40 : 798,812.96 = 407,679.14 : x
  2. Step 2: Convert to fraction form
    579,193.40/798,812.96 = 407,679.14/x
  3. Step 3: Cross multiply
    579,193.40x = 798,812.96 × 407,679.14
  4. Step 4: Simplify right side
    579,193.40x = 325,659,380,512.29
  5. Step 5: Solve for x
    x = 325,659,380,512.29/579,193.40
  6. Step 6: Final answer
    x = 562,263.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.