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Finding the Fourth Proportional to 254,913.60, 382,024.80 and 170,433.60

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Solution

The fourth proportional to 254,913.60, 382,024.80 and 170,433.60 is: 255,419.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,913.60 : 382,024.80 = 170,433.60 : x
  2. Step 2: Convert to fraction form
    254,913.60/382,024.80 = 170,433.60/x
  3. Step 3: Cross multiply
    254,913.60x = 382,024.80 × 170,433.60
  4. Step 4: Simplify right side
    254,913.60x = 65,109,861,953.28
  5. Step 5: Solve for x
    x = 65,109,861,953.28/254,913.60
  6. Step 6: Final answer
    x = 255,419.33

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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.