Home / 945,880.40-1,305,342.70-516,188.28

Finding the Fourth Proportional to 945,880.40, 1,305,342.70 and 516,188.28

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Solution

The fourth proportional to 945,880.40, 1,305,342.70 and 516,188.28 is: 712,354.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,880.40 : 1,305,342.70 = 516,188.28 : x
  2. Step 2: Convert to fraction form
    945,880.40/1,305,342.70 = 516,188.28/x
  3. Step 3: Cross multiply
    945,880.40x = 1,305,342.70 × 516,188.28
  4. Step 4: Simplify right side
    945,880.40x = 673,802,603,123.56
  5. Step 5: Solve for x
    x = 673,802,603,123.56/945,880.40
  6. Step 6: Final answer
    x = 712,354.97

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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.