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Finding the Fourth Proportional to 346,499.70, 520,077.60 and 296,636.10

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Solution

The fourth proportional to 346,499.70, 520,077.60 and 296,636.10 is: 445,234.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,499.70 : 520,077.60 = 296,636.10 : x
  2. Step 2: Convert to fraction form
    346,499.70/520,077.60 = 296,636.10/x
  3. Step 3: Cross multiply
    346,499.70x = 520,077.60 × 296,636.10
  4. Step 4: Simplify right side
    346,499.70x = 154,273,790,961.36
  5. Step 5: Solve for x
    x = 154,273,790,961.36/346,499.70
  6. Step 6: Final answer
    x = 445,234.99

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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.