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Finding the Fourth Proportional to 579,190.92, 798,809.58 and 407,676.66

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Solution

The fourth proportional to 579,190.92, 798,809.58 and 407,676.66 is: 562,260.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,190.92 : 798,809.58 = 407,676.66 : x
  2. Step 2: Convert to fraction form
    579,190.92/798,809.58 = 407,676.66/x
  3. Step 3: Cross multiply
    579,190.92x = 798,809.58 × 407,676.66
  4. Step 4: Simplify right side
    579,190.92x = 325,656,021,550.40
  5. Step 5: Solve for x
    x = 325,656,021,550.40/579,190.92
  6. Step 6: Final answer
    x = 562,260.23

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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.