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Finding the Fourth Proportional to 395,994.76, 593,975.92 and 143,281.24

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Solution

The fourth proportional to 395,994.76, 593,975.92 and 143,281.24 is: 214,915.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,994.76 : 593,975.92 = 143,281.24 : x
  2. Step 2: Convert to fraction form
    395,994.76/593,975.92 = 143,281.24/x
  3. Step 3: Cross multiply
    395,994.76x = 593,975.92 × 143,281.24
  4. Step 4: Simplify right side
    395,994.76x = 85,105,606,347.74
  5. Step 5: Solve for x
    x = 85,105,606,347.74/395,994.76
  6. Step 6: Final answer
    x = 214,915.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.