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Finding the Fourth Proportional to 1,796,769.16, 2,479,528.60 and 980,972.81

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Solution

The fourth proportional to 1,796,769.16, 2,479,528.60 and 980,972.81 is: 1,353,735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796,769.16 : 2,479,528.60 = 980,972.81 : x
  2. Step 2: Convert to fraction form
    1,796,769.16/2,479,528.60 = 980,972.81/x
  3. Step 3: Cross multiply
    1,796,769.16x = 2,479,528.60 × 980,972.81
  4. Step 4: Simplify right side
    1,796,769.16x = 2,432,350,144,416.19
  5. Step 5: Solve for x
    x = 2,432,350,144,416.19/1,796,769.16
  6. Step 6: Final answer
    x = 1,353,735.47

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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.