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Finding the Fourth Proportional to 325,841.60, 488,981.10 and 192,580.40

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Solution

The fourth proportional to 325,841.60, 488,981.10 and 192,580.40 is: 288,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,841.60 : 488,981.10 = 192,580.40 : x
  2. Step 2: Convert to fraction form
    325,841.60/488,981.10 = 192,580.40/x
  3. Step 3: Cross multiply
    325,841.60x = 488,981.10 × 192,580.40
  4. Step 4: Simplify right side
    325,841.60x = 94,168,175,830.44
  5. Step 5: Solve for x
    x = 94,168,175,830.44/325,841.60
  6. Step 6: Final answer
    x = 288,999.86

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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.