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Finding the Fourth Proportional to 260,028.20, 364,531 and 260,028.20

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Solution

The fourth proportional to 260,028.20, 364,531 and 260,028.20 is: 364,531

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,028.20 : 364,531 = 260,028.20 : x
  2. Step 2: Convert to fraction form
    260,028.20/364,531 = 260,028.20/x
  3. Step 3: Cross multiply
    260,028.20x = 364,531 × 260,028.20
  4. Step 4: Simplify right side
    260,028.20x = 94,788,339,774.20
  5. Step 5: Solve for x
    x = 94,788,339,774.20/260,028.20
  6. Step 6: Final answer
    x = 364,531

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.