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Finding the Fourth Proportional to 494,830.56, 683,030.70 and 352,004.88

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Solution

The fourth proportional to 494,830.56, 683,030.70 and 352,004.88 is: 485,883.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,830.56 : 683,030.70 = 352,004.88 : x
  2. Step 2: Convert to fraction form
    494,830.56/683,030.70 = 352,004.88/x
  3. Step 3: Cross multiply
    494,830.56x = 683,030.70 × 352,004.88
  4. Step 4: Simplify right side
    494,830.56x = 240,430,139,589.82
  5. Step 5: Solve for x
    x = 240,430,139,589.82/494,830.56
  6. Step 6: Final answer
    x = 485,883.77

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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.