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Finding the Fourth Proportional to 725,410.56, 1,000,756 and 453,005.60

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Solution

The fourth proportional to 725,410.56, 1,000,756 and 453,005.60 is: 624,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,410.56 : 1,000,756 = 453,005.60 : x
  2. Step 2: Convert to fraction form
    725,410.56/1,000,756 = 453,005.60/x
  3. Step 3: Cross multiply
    725,410.56x = 1,000,756 × 453,005.60
  4. Step 4: Simplify right side
    725,410.56x = 453,348,072,233.60
  5. Step 5: Solve for x
    x = 453,348,072,233.60/725,410.56
  6. Step 6: Final answer
    x = 624,953.78

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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.