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Finding the Fourth Proportional to 384,124.80, 576,187.20 and 384,124.80

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Solution

The fourth proportional to 384,124.80, 576,187.20 and 384,124.80 is: 576,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,124.80 : 576,187.20 = 384,124.80 : x
  2. Step 2: Convert to fraction form
    384,124.80/576,187.20 = 384,124.80/x
  3. Step 3: Cross multiply
    384,124.80x = 576,187.20 × 384,124.80
  4. Step 4: Simplify right side
    384,124.80x = 221,327,792,962.56
  5. Step 5: Solve for x
    x = 221,327,792,962.56/384,124.80
  6. Step 6: Final answer
    x = 576,187.20

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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.