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Finding the Fourth Proportional to 618,217.85, 852,714.56 and 434,845.33

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Solution

The fourth proportional to 618,217.85, 852,714.56 and 434,845.33 is: 599,786.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,217.85 : 852,714.56 = 434,845.33 : x
  2. Step 2: Convert to fraction form
    618,217.85/852,714.56 = 434,845.33/x
  3. Step 3: Cross multiply
    618,217.85x = 852,714.56 × 434,845.33
  4. Step 4: Simplify right side
    618,217.85x = 370,798,943,194.33
  5. Step 5: Solve for x
    x = 370,798,943,194.33/618,217.85
  6. Step 6: Final answer
    x = 599,786.86

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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.