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Finding the Fourth Proportional to 1,662,896.40, 2,294,741.16 and 1,051,378.32

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Solution

The fourth proportional to 1,662,896.40, 2,294,741.16 and 1,051,378.32 is: 1,450,866.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662,896.40 : 2,294,741.16 = 1,051,378.32 : x
  2. Step 2: Convert to fraction form
    1,662,896.40/2,294,741.16 = 1,051,378.32/x
  3. Step 3: Cross multiply
    1,662,896.40x = 2,294,741.16 × 1,051,378.32
  4. Step 4: Simplify right side
    1,662,896.40x = 2,412,641,105,635.65
  5. Step 5: Solve for x
    x = 2,412,641,105,635.65/1,662,896.40
  6. Step 6: Final answer
    x = 1,450,866.76

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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.