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Finding the Fourth Proportional to 292,080.20, 438,293.10 and 192,528.20

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Solution

The fourth proportional to 292,080.20, 438,293.10 and 192,528.20 is: 288,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,080.20 : 438,293.10 = 192,528.20 : x
  2. Step 2: Convert to fraction form
    292,080.20/438,293.10 = 192,528.20/x
  3. Step 3: Cross multiply
    292,080.20x = 438,293.10 × 192,528.20
  4. Step 4: Simplify right side
    292,080.20x = 84,383,781,615.42
  5. Step 5: Solve for x
    x = 84,383,781,615.42/292,080.20
  6. Step 6: Final answer
    x = 288,906.20

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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.