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Finding the Fourth Proportional to 325,837.60, 488,756.40 and 201,248.80

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Solution

The fourth proportional to 325,837.60, 488,756.40 and 201,248.80 is: 301,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,837.60 : 488,756.40 = 201,248.80 : x
  2. Step 2: Convert to fraction form
    325,837.60/488,756.40 = 201,248.80/x
  3. Step 3: Cross multiply
    325,837.60x = 488,756.40 × 201,248.80
  4. Step 4: Simplify right side
    325,837.60x = 98,361,638,992.32
  5. Step 5: Solve for x
    x = 98,361,638,992.32/325,837.60
  6. Step 6: Final answer
    x = 301,873.20

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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.