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Finding the Fourth Proportional to 297,772.50, 410,920.92 and 161,808.60

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Solution

The fourth proportional to 297,772.50, 410,920.92 and 161,808.60 is: 223,293.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,772.50 : 410,920.92 = 161,808.60 : x
  2. Step 2: Convert to fraction form
    297,772.50/410,920.92 = 161,808.60/x
  3. Step 3: Cross multiply
    297,772.50x = 410,920.92 × 161,808.60
  4. Step 4: Simplify right side
    297,772.50x = 66,490,538,775.91
  5. Step 5: Solve for x
    x = 66,490,538,775.91/297,772.50
  6. Step 6: Final answer
    x = 223,293.08

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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.