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Finding the Fourth Proportional to 551,432.60, 825,399.30 and 551,432.60

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Solution

The fourth proportional to 551,432.60, 825,399.30 and 551,432.60 is: 825,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,432.60 : 825,399.30 = 551,432.60 : x
  2. Step 2: Convert to fraction form
    551,432.60/825,399.30 = 551,432.60/x
  3. Step 3: Cross multiply
    551,432.60x = 825,399.30 × 551,432.60
  4. Step 4: Simplify right side
    551,432.60x = 455,152,082,037.18
  5. Step 5: Solve for x
    x = 455,152,082,037.18/551,432.60
  6. Step 6: Final answer
    x = 825,399.30

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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.