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Finding the Fourth Proportional to 395,902.47, 546,796.60 and 268,356.63

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Solution

The fourth proportional to 395,902.47, 546,796.60 and 268,356.63 is: 370,637.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,902.47 : 546,796.60 = 268,356.63 : x
  2. Step 2: Convert to fraction form
    395,902.47/546,796.60 = 268,356.63/x
  3. Step 3: Cross multiply
    395,902.47x = 546,796.60 × 268,356.63
  4. Step 4: Simplify right side
    395,902.47x = 146,736,492,200.57
  5. Step 5: Solve for x
    x = 146,736,492,200.57/395,902.47
  6. Step 6: Final answer
    x = 370,637.98

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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.