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Finding the Fourth Proportional to 5,276,304.80, 7,914,457.20 and 2,080,368.80

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Solution

The fourth proportional to 5,276,304.80, 7,914,457.20 and 2,080,368.80 is: 3,120,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276,304.80 : 7,914,457.20 = 2,080,368.80 : x
  2. Step 2: Convert to fraction form
    5,276,304.80/7,914,457.20 = 2,080,368.80/x
  3. Step 3: Cross multiply
    5,276,304.80x = 7,914,457.20 × 2,080,368.80
  4. Step 4: Simplify right side
    5,276,304.80x = 16,464,989,827,815.36
  5. Step 5: Solve for x
    x = 16,464,989,827,815.36/5,276,304.80
  6. Step 6: Final answer
    x = 3,120,553.20

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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.