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Finding the Fourth Proportional to 265,335.60, 396,966.60 and 172,023.60

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Solution

The fourth proportional to 265,335.60, 396,966.60 and 172,023.60 is: 257,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,335.60 : 396,966.60 = 172,023.60 : x
  2. Step 2: Convert to fraction form
    265,335.60/396,966.60 = 172,023.60/x
  3. Step 3: Cross multiply
    265,335.60x = 396,966.60 × 172,023.60
  4. Step 4: Simplify right side
    265,335.60x = 68,287,623,611.76
  5. Step 5: Solve for x
    x = 68,287,623,611.76/265,335.60
  6. Step 6: Final answer
    x = 257,363.22

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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.