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Finding the Fourth Proportional to 1,278,716.07, 1,764,624.54 and 705,752.13

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Solution

The fourth proportional to 1,278,716.07, 1,764,624.54 and 705,752.13 is: 973,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,716.07 : 1,764,624.54 = 705,752.13 : x
  2. Step 2: Convert to fraction form
    1,278,716.07/1,764,624.54 = 705,752.13/x
  3. Step 3: Cross multiply
    1,278,716.07x = 1,764,624.54 × 705,752.13
  4. Step 4: Simplify right side
    1,278,716.07x = 1,245,387,527,755.27
  5. Step 5: Solve for x
    x = 1,245,387,527,755.27/1,278,716.07
  6. Step 6: Final answer
    x = 973,935.93

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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.