Home / 945,670.60-1,305,021-515,949.40

Finding the Fourth Proportional to 945,670.60, 1,305,021 and 515,949.40

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Solution

The fourth proportional to 945,670.60, 1,305,021 and 515,949.40 is: 712,007.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,670.60 : 1,305,021 = 515,949.40 : x
  2. Step 2: Convert to fraction form
    945,670.60/1,305,021 = 515,949.40/x
  3. Step 3: Cross multiply
    945,670.60x = 1,305,021 × 515,949.40
  4. Step 4: Simplify right side
    945,670.60x = 673,324,801,937.40
  5. Step 5: Solve for x
    x = 673,324,801,937.40/945,670.60
  6. Step 6: Final answer
    x = 712,007.76

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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.