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Finding the Fourth Proportional to 436,705.13, 602,664.86 and 245,725.31

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Solution

The fourth proportional to 436,705.13, 602,664.86 and 245,725.31 is: 339,107.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,705.13 : 602,664.86 = 245,725.31 : x
  2. Step 2: Convert to fraction form
    436,705.13/602,664.86 = 245,725.31/x
  3. Step 3: Cross multiply
    436,705.13x = 602,664.86 × 245,725.31
  4. Step 4: Simplify right side
    436,705.13x = 148,090,009,549.61
  5. Step 5: Solve for x
    x = 148,090,009,549.61/436,705.13
  6. Step 6: Final answer
    x = 339,107.56

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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.