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Finding the Fourth Proportional to 544,903.70, 751,920.45 and 303,186.74

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Solution

The fourth proportional to 544,903.70, 751,920.45 and 303,186.74 is: 418,371.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,903.70 : 751,920.45 = 303,186.74 : x
  2. Step 2: Convert to fraction form
    544,903.70/751,920.45 = 303,186.74/x
  3. Step 3: Cross multiply
    544,903.70x = 751,920.45 × 303,186.74
  4. Step 4: Simplify right side
    544,903.70x = 227,972,309,974.83
  5. Step 5: Solve for x
    x = 227,972,309,974.83/544,903.70
  6. Step 6: Final answer
    x = 418,371.74

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1.5x scale

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.