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Finding the Fourth Proportional to 325,369.60, 488,009.40 and 100,884.40

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Solution

The fourth proportional to 325,369.60, 488,009.40 and 100,884.40 is: 151,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,369.60 : 488,009.40 = 100,884.40 : x
  2. Step 2: Convert to fraction form
    325,369.60/488,009.40 = 100,884.40/x
  3. Step 3: Cross multiply
    325,369.60x = 488,009.40 × 100,884.40
  4. Step 4: Simplify right side
    325,369.60x = 49,232,535,513.36
  5. Step 5: Solve for x
    x = 49,232,535,513.36/325,369.60
  6. Step 6: Final answer
    x = 151,312.65

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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.