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Finding the Fourth Proportional to 453,102.66, 679,260.33 and 265,720.50

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Solution

The fourth proportional to 453,102.66, 679,260.33 and 265,720.50 is: 398,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,102.66 : 679,260.33 = 265,720.50 : x
  2. Step 2: Convert to fraction form
    453,102.66/679,260.33 = 265,720.50/x
  3. Step 3: Cross multiply
    453,102.66x = 679,260.33 × 265,720.50
  4. Step 4: Simplify right side
    453,102.66x = 180,493,394,517.77
  5. Step 5: Solve for x
    x = 180,493,394,517.77/453,102.66
  6. Step 6: Final answer
    x = 398,349.89

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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.