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Finding the Fourth Proportional to 372,652.82, 514,234.94 and 211,511.16

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Solution

The fourth proportional to 372,652.82, 514,234.94 and 211,511.16 is: 291,870.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,652.82 : 514,234.94 = 211,511.16 : x
  2. Step 2: Convert to fraction form
    372,652.82/514,234.94 = 211,511.16/x
  3. Step 3: Cross multiply
    372,652.82x = 514,234.94 × 211,511.16
  4. Step 4: Simplify right side
    372,652.82x = 108,766,428,671.93
  5. Step 5: Solve for x
    x = 108,766,428,671.93/372,652.82
  6. Step 6: Final answer
    x = 291,870.67

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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.