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Finding the Fourth Proportional to 325,615.10, 488,422.65 and 325,615.10

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Solution

The fourth proportional to 325,615.10, 488,422.65 and 325,615.10 is: 488,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,615.10 : 488,422.65 = 325,615.10 : x
  2. Step 2: Convert to fraction form
    325,615.10/488,422.65 = 325,615.10/x
  3. Step 3: Cross multiply
    325,615.10x = 488,422.65 × 325,615.10
  4. Step 4: Simplify right side
    325,615.10x = 159,037,790,022.02
  5. Step 5: Solve for x
    x = 159,037,790,022.02/325,615.10
  6. Step 6: Final answer
    x = 488,422.65

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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.