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Finding the Fourth Proportional to 392,003.80, 587,228.10 and 233,762.20

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Solution

The fourth proportional to 392,003.80, 587,228.10 and 233,762.20 is: 350,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,003.80 : 587,228.10 = 233,762.20 : x
  2. Step 2: Convert to fraction form
    392,003.80/587,228.10 = 233,762.20/x
  3. Step 3: Cross multiply
    392,003.80x = 587,228.10 × 233,762.20
  4. Step 4: Simplify right side
    392,003.80x = 137,271,732,557.82
  5. Step 5: Solve for x
    x = 137,271,732,557.82/392,003.80
  6. Step 6: Final answer
    x = 350,179.60

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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.