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Finding the Fourth Proportional to 1,731,728.16, 2,389,890.96 and 967,842.72

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Solution

The fourth proportional to 1,731,728.16, 2,389,890.96 and 967,842.72 is: 1,335,682.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731,728.16 : 2,389,890.96 = 967,842.72 : x
  2. Step 2: Convert to fraction form
    1,731,728.16/2,389,890.96 = 967,842.72/x
  3. Step 3: Cross multiply
    1,731,728.16x = 2,389,890.96 × 967,842.72
  4. Step 4: Simplify right side
    1,731,728.16x = 2,313,038,567,229.81
  5. Step 5: Solve for x
    x = 2,313,038,567,229.81/1,731,728.16
  6. Step 6: Final answer
    x = 1,335,682.25

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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.