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Finding the Fourth Proportional to 266,573.80, 399,860.70 and 177,538.60

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Solution

The fourth proportional to 266,573.80, 399,860.70 and 177,538.60 is: 266,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,573.80 : 399,860.70 = 177,538.60 : x
  2. Step 2: Convert to fraction form
    266,573.80/399,860.70 = 177,538.60/x
  3. Step 3: Cross multiply
    266,573.80x = 399,860.70 × 177,538.60
  4. Step 4: Simplify right side
    266,573.80x = 70,990,708,873.02
  5. Step 5: Solve for x
    x = 70,990,708,873.02/266,573.80
  6. Step 6: Final answer
    x = 266,307.90

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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.