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Finding the Fourth Proportional to 360,054.69, 539,956.96 and 200,374.30

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Solution

The fourth proportional to 360,054.69, 539,956.96 and 200,374.30 is: 300,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,054.69 : 539,956.96 = 200,374.30 : x
  2. Step 2: Convert to fraction form
    360,054.69/539,956.96 = 200,374.30/x
  3. Step 3: Cross multiply
    360,054.69x = 539,956.96 × 200,374.30
  4. Step 4: Simplify right side
    360,054.69x = 108,193,494,188.47
  5. Step 5: Solve for x
    x = 108,193,494,188.47/360,054.69
  6. Step 6: Final answer
    x = 300,491.84

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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.