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Finding the Fourth Proportional to 576,425.84, 864,047.88 and 239,661.92

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Solution

The fourth proportional to 576,425.84, 864,047.88 and 239,661.92 is: 359,247.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,425.84 : 864,047.88 = 239,661.92 : x
  2. Step 2: Convert to fraction form
    576,425.84/864,047.88 = 239,661.92/x
  3. Step 3: Cross multiply
    576,425.84x = 864,047.88 × 239,661.92
  4. Step 4: Simplify right side
    576,425.84x = 207,079,373,892.73
  5. Step 5: Solve for x
    x = 207,079,373,892.73/576,425.84
  6. Step 6: Final answer
    x = 359,247.21

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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.