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Finding the Fourth Proportional to 1,278,894.12, 1,764,873.61 and 705,934.14

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Solution

The fourth proportional to 1,278,894.12, 1,764,873.61 and 705,934.14 is: 974,188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,894.12 : 1,764,873.61 = 705,934.14 : x
  2. Step 2: Convert to fraction form
    1,278,894.12/1,764,873.61 = 705,934.14/x
  3. Step 3: Cross multiply
    1,278,894.12x = 1,764,873.61 × 705,934.14
  4. Step 4: Simplify right side
    1,278,894.12x = 1,245,884,529,671.81
  5. Step 5: Solve for x
    x = 1,245,884,529,671.81/1,278,894.12
  6. Step 6: Final answer
    x = 974,188.96

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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.