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Finding the Fourth Proportional to 554,099.04, 764,656.80 and 315,635.04

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Solution

The fourth proportional to 554,099.04, 764,656.80 and 315,635.04 is: 435,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,099.04 : 764,656.80 = 315,635.04 : x
  2. Step 2: Convert to fraction form
    554,099.04/764,656.80 = 315,635.04/x
  3. Step 3: Cross multiply
    554,099.04x = 764,656.80 × 315,635.04
  4. Step 4: Simplify right side
    554,099.04x = 241,352,479,654.27
  5. Step 5: Solve for x
    x = 241,352,479,654.27/554,099.04
  6. Step 6: Final answer
    x = 435,576.43

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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.