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Finding the Fourth Proportional to 1,324,584.72, 1,825,740.72 and 936,899.28

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Solution

The fourth proportional to 1,324,584.72, 1,825,740.72 and 936,899.28 is: 1,291,374.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,584.72 : 1,825,740.72 = 936,899.28 : x
  2. Step 2: Convert to fraction form
    1,324,584.72/1,825,740.72 = 936,899.28/x
  3. Step 3: Cross multiply
    1,324,584.72x = 1,825,740.72 × 936,899.28
  4. Step 4: Simplify right side
    1,324,584.72x = 1,710,535,166,034.68
  5. Step 5: Solve for x
    x = 1,710,535,166,034.68/1,324,584.72
  6. Step 6: Final answer
    x = 1,291,374.68

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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.