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Finding the Fourth Proportional to 653,113.68, 978,921.28 and 273,964.30

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Solution

The fourth proportional to 653,113.68, 978,921.28 and 273,964.30 is: 410,632.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,113.68 : 978,921.28 = 273,964.30 : x
  2. Step 2: Convert to fraction form
    653,113.68/978,921.28 = 273,964.30/x
  3. Step 3: Cross multiply
    653,113.68x = 978,921.28 × 273,964.30
  4. Step 4: Simplify right side
    653,113.68x = 268,189,483,230.30
  5. Step 5: Solve for x
    x = 268,189,483,230.30/653,113.68
  6. Step 6: Final answer
    x = 410,632.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.