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Finding the Fourth Proportional to 346,736.80, 520,105.20 and 346,736.80

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Solution

The fourth proportional to 346,736.80, 520,105.20 and 346,736.80 is: 520,105.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,736.80 : 520,105.20 = 346,736.80 : x
  2. Step 2: Convert to fraction form
    346,736.80/520,105.20 = 346,736.80/x
  3. Step 3: Cross multiply
    346,736.80x = 520,105.20 × 346,736.80
  4. Step 4: Simplify right side
    346,736.80x = 180,339,612,711.36
  5. Step 5: Solve for x
    x = 180,339,612,711.36/346,736.80
  6. Step 6: Final answer
    x = 520,105.20

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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.