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Finding the Fourth Proportional to 594,422.90, 820,393.66 and 379,705.98

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Solution

The fourth proportional to 594,422.90, 820,393.66 and 379,705.98 is: 524,051.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,422.90 : 820,393.66 = 379,705.98 : x
  2. Step 2: Convert to fraction form
    594,422.90/820,393.66 = 379,705.98/x
  3. Step 3: Cross multiply
    594,422.90x = 820,393.66 × 379,705.98
  4. Step 4: Simplify right side
    594,422.90x = 311,508,378,656.09
  5. Step 5: Solve for x
    x = 311,508,378,656.09/594,422.90
  6. Step 6: Final answer
    x = 524,051.78

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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.