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Finding the Fourth Proportional to 471,357.19, 650,486.60 and 256,511.11

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Solution

The fourth proportional to 471,357.19, 650,486.60 and 256,511.11 is: 353,992.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,357.19 : 650,486.60 = 256,511.11 : x
  2. Step 2: Convert to fraction form
    471,357.19/650,486.60 = 256,511.11/x
  3. Step 3: Cross multiply
    471,357.19x = 650,486.60 × 256,511.11
  4. Step 4: Simplify right side
    471,357.19x = 166,857,039,806.13
  5. Step 5: Solve for x
    x = 166,857,039,806.13/471,357.19
  6. Step 6: Final answer
    x = 353,992.78

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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.