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Finding the Fourth Proportional to 325,544.90, 488,317.35 and 100,904.90

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Solution

The fourth proportional to 325,544.90, 488,317.35 and 100,904.90 is: 151,357.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,544.90 : 488,317.35 = 100,904.90 : x
  2. Step 2: Convert to fraction form
    325,544.90/488,317.35 = 100,904.90/x
  3. Step 3: Cross multiply
    325,544.90x = 488,317.35 × 100,904.90
  4. Step 4: Simplify right side
    325,544.90x = 49,273,613,370.02
  5. Step 5: Solve for x
    x = 49,273,613,370.02/325,544.90
  6. Step 6: Final answer
    x = 151,357.35

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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.