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Finding the Fourth Proportional to 392,520.20, 588,780.30 and 97,032.20

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Solution

The fourth proportional to 392,520.20, 588,780.30 and 97,032.20 is: 145,548.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,520.20 : 588,780.30 = 97,032.20 : x
  2. Step 2: Convert to fraction form
    392,520.20/588,780.30 = 97,032.20/x
  3. Step 3: Cross multiply
    392,520.20x = 588,780.30 × 97,032.20
  4. Step 4: Simplify right side
    392,520.20x = 57,130,647,825.66
  5. Step 5: Solve for x
    x = 57,130,647,825.66/392,520.20
  6. Step 6: Final answer
    x = 145,548.30

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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.