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Finding the Fourth Proportional to 553,592.60, 764,014.22 and 338,874.56

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Solution

The fourth proportional to 553,592.60, 764,014.22 and 338,874.56 is: 467,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,592.60 : 764,014.22 = 338,874.56 : x
  2. Step 2: Convert to fraction form
    553,592.60/764,014.22 = 338,874.56/x
  3. Step 3: Cross multiply
    553,592.60x = 764,014.22 × 338,874.56
  4. Step 4: Simplify right side
    553,592.60x = 258,904,982,636.24
  5. Step 5: Solve for x
    x = 258,904,982,636.24/553,592.60
  6. Step 6: Final answer
    x = 467,681.44

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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.