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Finding the Fourth Proportional to 554,034.62, 764,856.86 and 393,273.72

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Solution

The fourth proportional to 554,034.62, 764,856.86 and 393,273.72 is: 542,922.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,034.62 : 764,856.86 = 393,273.72 : x
  2. Step 2: Convert to fraction form
    554,034.62/764,856.86 = 393,273.72/x
  3. Step 3: Cross multiply
    554,034.62x = 764,856.86 × 393,273.72
  4. Step 4: Simplify right side
    554,034.62x = 300,798,102,599.72
  5. Step 5: Solve for x
    x = 300,798,102,599.72/554,034.62
  6. Step 6: Final answer
    x = 542,922.94

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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.