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Finding the Fourth Proportional to 453,489.15, 679,998.42 and 133,599.50

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Solution

The fourth proportional to 453,489.15, 679,998.42 and 133,599.50 is: 200,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,489.15 : 679,998.42 = 133,599.50 : x
  2. Step 2: Convert to fraction form
    453,489.15/679,998.42 = 133,599.50/x
  3. Step 3: Cross multiply
    453,489.15x = 679,998.42 × 133,599.50
  4. Step 4: Simplify right side
    453,489.15x = 90,847,448,912.79
  5. Step 5: Solve for x
    x = 90,847,448,912.79/453,489.15
  6. Step 6: Final answer
    x = 200,329.93

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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.