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Finding the Fourth Proportional to 806,753.12, 1,210,537.92 and 333,777.92

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Solution

The fourth proportional to 806,753.12, 1,210,537.92 and 333,777.92 is: 500,835.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,753.12 : 1,210,537.92 = 333,777.92 : x
  2. Step 2: Convert to fraction form
    806,753.12/1,210,537.92 = 333,777.92/x
  3. Step 3: Cross multiply
    806,753.12x = 1,210,537.92 × 333,777.92
  4. Step 4: Simplify right side
    806,753.12x = 404,050,829,018.73
  5. Step 5: Solve for x
    x = 404,050,829,018.73/806,753.12
  6. Step 6: Final answer
    x = 500,835.78

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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.