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Finding the Fourth Proportional to 528,422.43, 792,776.56 and 376,810.98

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Solution

The fourth proportional to 528,422.43, 792,776.56 and 376,810.98 is: 565,318.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,422.43 : 792,776.56 = 376,810.98 : x
  2. Step 2: Convert to fraction form
    528,422.43/792,776.56 = 376,810.98/x
  3. Step 3: Cross multiply
    528,422.43x = 792,776.56 × 376,810.98
  4. Step 4: Simplify right side
    528,422.43x = 298,726,912,494.63
  5. Step 5: Solve for x
    x = 298,726,912,494.63/528,422.43
  6. Step 6: Final answer
    x = 565,318.38

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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.