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Finding the Fourth Proportional to 453,647.76, 680,735.28 and 251,264.40

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Solution

The fourth proportional to 453,647.76, 680,735.28 and 251,264.40 is: 377,042.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,647.76 : 680,735.28 = 251,264.40 : x
  2. Step 2: Convert to fraction form
    453,647.76/680,735.28 = 251,264.40/x
  3. Step 3: Cross multiply
    453,647.76x = 680,735.28 × 251,264.40
  4. Step 4: Simplify right side
    453,647.76x = 171,044,541,688.03
  5. Step 5: Solve for x
    x = 171,044,541,688.03/453,647.76
  6. Step 6: Final answer
    x = 377,042.62

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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.