Home / 945,512.70-1,304,804.81-515,789.76

Finding the Fourth Proportional to 945,512.70, 1,304,804.81 and 515,789.76

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Solution

The fourth proportional to 945,512.70, 1,304,804.81 and 515,789.76 is: 711,788.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,512.70 : 1,304,804.81 = 515,789.76 : x
  2. Step 2: Convert to fraction form
    945,512.70/1,304,804.81 = 515,789.76/x
  3. Step 3: Cross multiply
    945,512.70x = 1,304,804.81 × 515,789.76
  4. Step 4: Simplify right side
    945,512.70x = 673,004,957,217.80
  5. Step 5: Solve for x
    x = 673,004,957,217.80/945,512.70
  6. Step 6: Final answer
    x = 711,788.38

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Double scale
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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.