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Finding the Fourth Proportional to 652,719.64, 978,857.74 and 226,155.92

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Solution

The fourth proportional to 652,719.64, 978,857.74 and 226,155.92 is: 339,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,719.64 : 978,857.74 = 226,155.92 : x
  2. Step 2: Convert to fraction form
    652,719.64/978,857.74 = 226,155.92/x
  3. Step 3: Cross multiply
    652,719.64x = 978,857.74 × 226,155.92
  4. Step 4: Simplify right side
    652,719.64x = 221,374,467,844.53
  5. Step 5: Solve for x
    x = 221,374,467,844.53/652,719.64
  6. Step 6: Final answer
    x = 339,157.05

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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.