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Finding the Fourth Proportional to 551,166.80, 825,875.40 and 363,959.60

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Solution

The fourth proportional to 551,166.80, 825,875.40 and 363,959.60 is: 545,361.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,166.80 : 825,875.40 = 363,959.60 : x
  2. Step 2: Convert to fraction form
    551,166.80/825,875.40 = 363,959.60/x
  3. Step 3: Cross multiply
    551,166.80x = 825,875.40 × 363,959.60
  4. Step 4: Simplify right side
    551,166.80x = 300,585,280,233.84
  5. Step 5: Solve for x
    x = 300,585,280,233.84/551,166.80
  6. Step 6: Final answer
    x = 545,361.73

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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.