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Finding the Fourth Proportional to 452,992.80, 680,007.60 and 266,109.60

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Solution

The fourth proportional to 452,992.80, 680,007.60 and 266,109.60 is: 399,468.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,992.80 : 680,007.60 = 266,109.60 : x
  2. Step 2: Convert to fraction form
    452,992.80/680,007.60 = 266,109.60/x
  3. Step 3: Cross multiply
    452,992.80x = 680,007.60 × 266,109.60
  4. Step 4: Simplify right side
    452,992.80x = 180,956,550,432.96
  5. Step 5: Solve for x
    x = 180,956,550,432.96/452,992.80
  6. Step 6: Final answer
    x = 399,468.93

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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.