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Finding the Fourth Proportional to 613,819.74, 919,157.52 and 512,365.54

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Solution

The fourth proportional to 613,819.74, 919,157.52 and 512,365.54 is: 767,236.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,819.74 : 919,157.52 = 512,365.54 : x
  2. Step 2: Convert to fraction form
    613,819.74/919,157.52 = 512,365.54/x
  3. Step 3: Cross multiply
    613,819.74x = 919,157.52 × 512,365.54
  4. Step 4: Simplify right side
    613,819.74x = 470,944,640,228.81
  5. Step 5: Solve for x
    x = 470,944,640,228.81/613,819.74
  6. Step 6: Final answer
    x = 767,236.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.