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Finding the Fourth Proportional to 1,278,715.82, 1,764,624.20 and 705,751.88

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Solution

The fourth proportional to 1,278,715.82, 1,764,624.20 and 705,751.88 is: 973,935.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,715.82 : 1,764,624.20 = 705,751.88 : x
  2. Step 2: Convert to fraction form
    1,278,715.82/1,764,624.20 = 705,751.88/x
  3. Step 3: Cross multiply
    1,278,715.82x = 1,764,624.20 × 705,751.88
  4. Step 4: Simplify right side
    1,278,715.82x = 1,245,386,834,291.62
  5. Step 5: Solve for x
    x = 1,245,386,834,291.62/1,278,715.82
  6. Step 6: Final answer
    x = 973,935.58

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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.