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Finding the Fourth Proportional to 610,562.49, 842,627.84 and 338,717.88

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Solution

The fourth proportional to 610,562.49, 842,627.84 and 338,717.88 is: 467,459.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,562.49 : 842,627.84 = 338,717.88 : x
  2. Step 2: Convert to fraction form
    610,562.49/842,627.84 = 338,717.88/x
  3. Step 3: Cross multiply
    610,562.49x = 842,627.84 × 338,717.88
  4. Step 4: Simplify right side
    610,562.49x = 285,413,113,900.19
  5. Step 5: Solve for x
    x = 285,413,113,900.19/610,562.49
  6. Step 6: Final answer
    x = 467,459.30

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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.