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Finding the Fourth Proportional to 978,530.16, 1,349,121.84 and 633,757.04

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Solution

The fourth proportional to 978,530.16, 1,349,121.84 and 633,757.04 is: 873,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,530.16 : 1,349,121.84 = 633,757.04 : x
  2. Step 2: Convert to fraction form
    978,530.16/1,349,121.84 = 633,757.04/x
  3. Step 3: Cross multiply
    978,530.16x = 1,349,121.84 × 633,757.04
  4. Step 4: Simplify right side
    978,530.16x = 855,015,463,917.75
  5. Step 5: Solve for x
    x = 855,015,463,917.75/978,530.16
  6. Step 6: Final answer
    x = 873,775.28

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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.