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Finding the Fourth Proportional to 528,454.47, 792,764.31 and 173,387.73

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Solution

The fourth proportional to 528,454.47, 792,764.31 and 173,387.73 is: 260,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,454.47 : 792,764.31 = 173,387.73 : x
  2. Step 2: Convert to fraction form
    528,454.47/792,764.31 = 173,387.73/x
  3. Step 3: Cross multiply
    528,454.47x = 792,764.31 × 173,387.73
  4. Step 4: Simplify right side
    528,454.47x = 137,455,604,135.92
  5. Step 5: Solve for x
    x = 137,455,604,135.92/528,454.47
  6. Step 6: Final answer
    x = 260,108.70

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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.