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Finding the Fourth Proportional to 551,443.10, 825,415.05 and 551,443.10

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Solution

The fourth proportional to 551,443.10, 825,415.05 and 551,443.10 is: 825,415.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,443.10 : 825,415.05 = 551,443.10 : x
  2. Step 2: Convert to fraction form
    551,443.10/825,415.05 = 551,443.10/x
  3. Step 3: Cross multiply
    551,443.10x = 825,415.05 × 551,443.10
  4. Step 4: Simplify right side
    551,443.10x = 455,169,433,958.66
  5. Step 5: Solve for x
    x = 455,169,433,958.66/551,443.10
  6. Step 6: Final answer
    x = 825,415.05

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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.