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Finding the Fourth Proportional to 325,643.60, 488,465.40 and 104,027.60

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Solution

The fourth proportional to 325,643.60, 488,465.40 and 104,027.60 is: 156,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,643.60 : 488,465.40 = 104,027.60 : x
  2. Step 2: Convert to fraction form
    325,643.60/488,465.40 = 104,027.60/x
  3. Step 3: Cross multiply
    325,643.60x = 488,465.40 × 104,027.60
  4. Step 4: Simplify right side
    325,643.60x = 50,813,883,245.04
  5. Step 5: Solve for x
    x = 50,813,883,245.04/325,643.60
  6. Step 6: Final answer
    x = 156,041.40

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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.