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Finding the Fourth Proportional to 675,994.56, 933,107.31 and 418,068.96

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Solution

The fourth proportional to 675,994.56, 933,107.31 and 418,068.96 is: 577,080.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,994.56 : 933,107.31 = 418,068.96 : x
  2. Step 2: Convert to fraction form
    675,994.56/933,107.31 = 418,068.96/x
  3. Step 3: Cross multiply
    675,994.56x = 933,107.31 × 418,068.96
  4. Step 4: Simplify right side
    675,994.56x = 390,103,202,660.10
  5. Step 5: Solve for x
    x = 390,103,202,660.10/675,994.56
  6. Step 6: Final answer
    x = 577,080.39

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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.