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Finding the Fourth Proportional to 682,051.50, 941,218.59 and 376,156.11

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Solution

The fourth proportional to 682,051.50, 941,218.59 and 376,156.11 is: 519,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,051.50 : 941,218.59 = 376,156.11 : x
  2. Step 2: Convert to fraction form
    682,051.50/941,218.59 = 376,156.11/x
  3. Step 3: Cross multiply
    682,051.50x = 941,218.59 × 376,156.11
  4. Step 4: Simplify right side
    682,051.50x = 354,045,123,474.09
  5. Step 5: Solve for x
    x = 354,045,123,474.09/682,051.50
  6. Step 6: Final answer
    x = 519,088.55

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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.