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Finding the Fourth Proportional to 3,706,651.20, 5,559,976.80 and 1,310,476.80

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Solution

The fourth proportional to 3,706,651.20, 5,559,976.80 and 1,310,476.80 is: 1,965,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706,651.20 : 5,559,976.80 = 1,310,476.80 : x
  2. Step 2: Convert to fraction form
    3,706,651.20/5,559,976.80 = 1,310,476.80/x
  3. Step 3: Cross multiply
    3,706,651.20x = 5,559,976.80 × 1,310,476.80
  4. Step 4: Simplify right side
    3,706,651.20x = 7,286,220,604,938.24
  5. Step 5: Solve for x
    x = 7,286,220,604,938.24/3,706,651.20
  6. Step 6: Final answer
    x = 1,965,715.20

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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.