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Finding the Fourth Proportional to 563,172.92, 777,179.41 and 305,052.67

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Solution

The fourth proportional to 563,172.92, 777,179.41 and 305,052.67 is: 420,973.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,172.92 : 777,179.41 = 305,052.67 : x
  2. Step 2: Convert to fraction form
    563,172.92/777,179.41 = 305,052.67/x
  3. Step 3: Cross multiply
    563,172.92x = 777,179.41 × 305,052.67
  4. Step 4: Simplify right side
    563,172.92x = 237,080,654,170.67
  5. Step 5: Solve for x
    x = 237,080,654,170.67/563,172.92
  6. Step 6: Final answer
    x = 420,973.11

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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.