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Finding the Fourth Proportional to 325,551.60, 488,327.40 and 112,319.10

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Solution

The fourth proportional to 325,551.60, 488,327.40 and 112,319.10 is: 168,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,551.60 : 488,327.40 = 112,319.10 : x
  2. Step 2: Convert to fraction form
    325,551.60/488,327.40 = 112,319.10/x
  3. Step 3: Cross multiply
    325,551.60x = 488,327.40 × 112,319.10
  4. Step 4: Simplify right side
    325,551.60x = 54,848,494,073.34
  5. Step 5: Solve for x
    x = 54,848,494,073.34/325,551.60
  6. Step 6: Final answer
    x = 168,478.65

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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.