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Finding the Fourth Proportional to 436,811.63, 602,700.31 and 245,755.31

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Solution

The fourth proportional to 436,811.63, 602,700.31 and 245,755.31 is: 339,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,811.63 : 602,700.31 = 245,755.31 : x
  2. Step 2: Convert to fraction form
    436,811.63/602,700.31 = 245,755.31/x
  3. Step 3: Cross multiply
    436,811.63x = 602,700.31 × 245,755.31
  4. Step 4: Simplify right side
    436,811.63x = 148,116,801,521.15
  5. Step 5: Solve for x
    x = 148,116,801,521.15/436,811.63
  6. Step 6: Final answer
    x = 339,086.21

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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.