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Finding the Fourth Proportional to 612,466.56, 918,101.15 and 275,592.02

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Solution

The fourth proportional to 612,466.56, 918,101.15 and 275,592.02 is: 413,118.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,466.56 : 918,101.15 = 275,592.02 : x
  2. Step 2: Convert to fraction form
    612,466.56/918,101.15 = 275,592.02/x
  3. Step 3: Cross multiply
    612,466.56x = 918,101.15 × 275,592.02
  4. Step 4: Simplify right side
    612,466.56x = 253,021,344,524.36
  5. Step 5: Solve for x
    x = 253,021,344,524.36/612,466.56
  6. Step 6: Final answer
    x = 413,118.63

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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.