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Finding the Fourth Proportional to 383,087.76, 528,192.67 and 239,598.69

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Solution

The fourth proportional to 383,087.76, 528,192.67 and 239,598.69 is: 330,353.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,087.76 : 528,192.67 = 239,598.69 : x
  2. Step 2: Convert to fraction form
    383,087.76/528,192.67 = 239,598.69/x
  3. Step 3: Cross multiply
    383,087.76x = 528,192.67 × 239,598.69
  4. Step 4: Simplify right side
    383,087.76x = 126,554,271,799.60
  5. Step 5: Solve for x
    x = 126,554,271,799.60/383,087.76
  6. Step 6: Final answer
    x = 330,353.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.