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Finding the Fourth Proportional to 268,364.80, 401,672.40 and 268,364.80

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Solution

The fourth proportional to 268,364.80, 401,672.40 and 268,364.80 is: 401,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,364.80 : 401,672.40 = 268,364.80 : x
  2. Step 2: Convert to fraction form
    268,364.80/401,672.40 = 268,364.80/x
  3. Step 3: Cross multiply
    268,364.80x = 401,672.40 × 268,364.80
  4. Step 4: Simplify right side
    268,364.80x = 107,794,733,291.52
  5. Step 5: Solve for x
    x = 107,794,733,291.52/268,364.80
  6. Step 6: Final answer
    x = 401,672.40

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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.