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Finding the Fourth Proportional to 395,666.92, 546,043.42 and 223,580.50

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Solution

The fourth proportional to 395,666.92, 546,043.42 and 223,580.50 is: 308,554.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,666.92 : 546,043.42 = 223,580.50 : x
  2. Step 2: Convert to fraction form
    395,666.92/546,043.42 = 223,580.50/x
  3. Step 3: Cross multiply
    395,666.92x = 546,043.42 × 223,580.50
  4. Step 4: Simplify right side
    395,666.92x = 122,084,660,865.31
  5. Step 5: Solve for x
    x = 122,084,660,865.31/395,666.92
  6. Step 6: Final answer
    x = 308,554.13

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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.