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Finding the Fourth Proportional to 487,790.44, 673,230.45 and 334,702.27

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Solution

The fourth proportional to 487,790.44, 673,230.45 and 334,702.27 is: 461,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,790.44 : 673,230.45 = 334,702.27 : x
  2. Step 2: Convert to fraction form
    487,790.44/673,230.45 = 334,702.27/x
  3. Step 3: Cross multiply
    487,790.44x = 673,230.45 × 334,702.27
  4. Step 4: Simplify right side
    487,790.44x = 225,331,759,848.12
  5. Step 5: Solve for x
    x = 225,331,759,848.12/487,790.44
  6. Step 6: Final answer
    x = 461,943.78

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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.