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Finding the Fourth Proportional to 330,837.50, 456,659.80 and 187,692.68

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Solution

The fourth proportional to 330,837.50, 456,659.80 and 187,692.68 is: 259,074.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,837.50 : 456,659.80 = 187,692.68 : x
  2. Step 2: Convert to fraction form
    330,837.50/456,659.80 = 187,692.68/x
  3. Step 3: Cross multiply
    330,837.50x = 456,659.80 × 187,692.68
  4. Step 4: Simplify right side
    330,837.50x = 85,711,701,710.26
  5. Step 5: Solve for x
    x = 85,711,701,710.26/330,837.50
  6. Step 6: Final answer
    x = 259,074.93

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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.