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Finding the Fourth Proportional to 814,218.84, 1,123,640.01 and 451,630.89

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Solution

The fourth proportional to 814,218.84, 1,123,640.01 and 451,630.89 is: 623,260.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,218.84 : 1,123,640.01 = 451,630.89 : x
  2. Step 2: Convert to fraction form
    814,218.84/1,123,640.01 = 451,630.89/x
  3. Step 3: Cross multiply
    814,218.84x = 1,123,640.01 × 451,630.89
  4. Step 4: Simplify right side
    814,218.84x = 507,470,537,755.91
  5. Step 5: Solve for x
    x = 507,470,537,755.91/814,218.84
  6. Step 6: Final answer
    x = 623,260.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.