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Finding the Fourth Proportional to 395,615.51, 545,948.73 and 214,332.04

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Solution

The fourth proportional to 395,615.51, 545,948.73 and 214,332.04 is: 295,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,615.51 : 545,948.73 = 214,332.04 : x
  2. Step 2: Convert to fraction form
    395,615.51/545,948.73 = 214,332.04/x
  3. Step 3: Cross multiply
    395,615.51x = 545,948.73 × 214,332.04
  4. Step 4: Simplify right side
    395,615.51x = 117,014,305,036.31
  5. Step 5: Solve for x
    x = 117,014,305,036.31/395,615.51
  6. Step 6: Final answer
    x = 295,777.85

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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.