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Finding the Fourth Proportional to 526,777.30, 726,954.59 and 285,059.84

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Solution

The fourth proportional to 526,777.30, 726,954.59 and 285,059.84 is: 393,383.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,777.30 : 726,954.59 = 285,059.84 : x
  2. Step 2: Convert to fraction form
    526,777.30/726,954.59 = 285,059.84/x
  3. Step 3: Cross multiply
    526,777.30x = 726,954.59 × 285,059.84
  4. Step 4: Simplify right side
    526,777.30x = 207,225,561,342.17
  5. Step 5: Solve for x
    x = 207,225,561,342.17/526,777.30
  6. Step 6: Final answer
    x = 393,383.62

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1.5x scale

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.