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Finding the Fourth Proportional to 362,187,320.80, 543,280,981.20 and 362,187,320.80

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Solution

The fourth proportional to 362,187,320.80, 543,280,981.20 and 362,187,320.80 is: 543,280,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,187,320.80 : 543,280,981.20 = 362,187,320.80 : x
  2. Step 2: Convert to fraction form
    362,187,320.80/543,280,981.20 = 362,187,320.80/x
  3. Step 3: Cross multiply
    362,187,320.80x = 543,280,981.20 × 362,187,320.80
  4. Step 4: Simplify right side
    362,187,320.80x = 196,769,483,022,423,200
  5. Step 5: Solve for x
    x = 196,769,483,022,423,200/362,187,320.80
  6. Step 6: Final answer
    x = 543,280,981.20

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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.