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Finding the Fourth Proportional to 353,539.40, 530,309.10 and 227,568.20

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Solution

The fourth proportional to 353,539.40, 530,309.10 and 227,568.20 is: 341,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,539.40 : 530,309.10 = 227,568.20 : x
  2. Step 2: Convert to fraction form
    353,539.40/530,309.10 = 227,568.20/x
  3. Step 3: Cross multiply
    353,539.40x = 530,309.10 × 227,568.20
  4. Step 4: Simplify right side
    353,539.40x = 120,681,487,330.62
  5. Step 5: Solve for x
    x = 120,681,487,330.62/353,539.40
  6. Step 6: Final answer
    x = 341,352.30

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1.5x scale

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.