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Finding the Fourth Proportional to 557,657.20, 835,564.20 and 474,713.20

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Solution

The fourth proportional to 557,657.20, 835,564.20 and 474,713.20 is: 711,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,657.20 : 835,564.20 = 474,713.20 : x
  2. Step 2: Convert to fraction form
    557,657.20/835,564.20 = 474,713.20/x
  3. Step 3: Cross multiply
    557,657.20x = 835,564.20 × 474,713.20
  4. Step 4: Simplify right side
    557,657.20x = 396,653,355,187.44
  5. Step 5: Solve for x
    x = 396,653,355,187.44/557,657.20
  6. Step 6: Final answer
    x = 711,285.28

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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.