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Finding the Fourth Proportional to 395,953.78, 546,495.62 and 234,898.24

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Solution

The fourth proportional to 395,953.78, 546,495.62 and 234,898.24 is: 324,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,953.78 : 546,495.62 = 234,898.24 : x
  2. Step 2: Convert to fraction form
    395,953.78/546,495.62 = 234,898.24/x
  3. Step 3: Cross multiply
    395,953.78x = 546,495.62 × 234,898.24
  4. Step 4: Simplify right side
    395,953.78x = 128,370,859,305.71
  5. Step 5: Solve for x
    x = 128,370,859,305.71/395,953.78
  6. Step 6: Final answer
    x = 324,206.68

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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.