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Finding the Fourth Proportional to 556,832.50, 768,429.39 and 302,183.74

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Solution

The fourth proportional to 556,832.50, 768,429.39 and 302,183.74 is: 417,013.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,832.50 : 768,429.39 = 302,183.74 : x
  2. Step 2: Convert to fraction form
    556,832.50/768,429.39 = 302,183.74/x
  3. Step 3: Cross multiply
    556,832.50x = 768,429.39 × 302,183.74
  4. Step 4: Simplify right side
    556,832.50x = 232,206,866,996.12
  5. Step 5: Solve for x
    x = 232,206,866,996.12/556,832.50
  6. Step 6: Final answer
    x = 417,013.85

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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.