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Finding the Fourth Proportional to 557,805.68, 836,620.44 and 463,640.72

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Solution

The fourth proportional to 557,805.68, 836,620.44 and 463,640.72 is: 695,387.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,805.68 : 836,620.44 = 463,640.72 : x
  2. Step 2: Convert to fraction form
    557,805.68/836,620.44 = 463,640.72/x
  3. Step 3: Cross multiply
    557,805.68x = 836,620.44 × 463,640.72
  4. Step 4: Simplify right side
    557,805.68x = 387,891,303,168.32
  5. Step 5: Solve for x
    x = 387,891,303,168.32/557,805.68
  6. Step 6: Final answer
    x = 695,387.87

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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.