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Finding the Fourth Proportional to 468,580.88, 646,638.68 and 253,716.40

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Solution

The fourth proportional to 468,580.88, 646,638.68 and 253,716.40 is: 350,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,580.88 : 646,638.68 = 253,716.40 : x
  2. Step 2: Convert to fraction form
    468,580.88/646,638.68 = 253,716.40/x
  3. Step 3: Cross multiply
    468,580.88x = 646,638.68 × 253,716.40
  4. Step 4: Simplify right side
    468,580.88x = 164,062,837,990.35
  5. Step 5: Solve for x
    x = 164,062,837,990.35/468,580.88
  6. Step 6: Final answer
    x = 350,127.04

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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.