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Finding the Fourth Proportional to 325,416.80, 488,125.20 and 230,938.40

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Solution

The fourth proportional to 325,416.80, 488,125.20 and 230,938.40 is: 346,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,416.80 : 488,125.20 = 230,938.40 : x
  2. Step 2: Convert to fraction form
    325,416.80/488,125.20 = 230,938.40/x
  3. Step 3: Cross multiply
    325,416.80x = 488,125.20 × 230,938.40
  4. Step 4: Simplify right side
    325,416.80x = 112,726,852,687.68
  5. Step 5: Solve for x
    x = 112,726,852,687.68/325,416.80
  6. Step 6: Final answer
    x = 346,407.60

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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.