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Finding the Fourth Proportional to 468,522.40, 646,553.08 and 253,660.72

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Solution

The fourth proportional to 468,522.40, 646,553.08 and 253,660.72 is: 350,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,522.40 : 646,553.08 = 253,660.72 : x
  2. Step 2: Convert to fraction form
    468,522.40/646,553.08 = 253,660.72/x
  3. Step 3: Cross multiply
    468,522.40x = 646,553.08 × 253,660.72
  4. Step 4: Simplify right side
    468,522.40x = 164,005,119,791.02
  5. Step 5: Solve for x
    x = 164,005,119,791.02/468,522.40
  6. Step 6: Final answer
    x = 350,047.55

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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.