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Finding the Fourth Proportional to 405,725.52, 559,852.43 and 233,699.43

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Solution

The fourth proportional to 405,725.52, 559,852.43 and 233,699.43 is: 322,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,725.52 : 559,852.43 = 233,699.43 : x
  2. Step 2: Convert to fraction form
    405,725.52/559,852.43 = 233,699.43/x
  3. Step 3: Cross multiply
    405,725.52x = 559,852.43 × 233,699.43
  4. Step 4: Simplify right side
    405,725.52x = 130,837,193,775.12
  5. Step 5: Solve for x
    x = 130,837,193,775.12/405,725.52
  6. Step 6: Final answer
    x = 322,477.11

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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.