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Finding the Fourth Proportional to 330,258.60, 455,762.16 and 179,355.60

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Solution

The fourth proportional to 330,258.60, 455,762.16 and 179,355.60 is: 247,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,258.60 : 455,762.16 = 179,355.60 : x
  2. Step 2: Convert to fraction form
    330,258.60/455,762.16 = 179,355.60/x
  3. Step 3: Cross multiply
    330,258.60x = 455,762.16 × 179,355.60
  4. Step 4: Simplify right side
    330,258.60x = 81,743,495,664.10
  5. Step 5: Solve for x
    x = 81,743,495,664.10/330,258.60
  6. Step 6: Final answer
    x = 247,513.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.