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Finding the Fourth Proportional to 367,042.80, 550,564.20 and 311,055.60

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Solution

The fourth proportional to 367,042.80, 550,564.20 and 311,055.60 is: 466,583.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,042.80 : 550,564.20 = 311,055.60 : x
  2. Step 2: Convert to fraction form
    367,042.80/550,564.20 = 311,055.60/x
  3. Step 3: Cross multiply
    367,042.80x = 550,564.20 × 311,055.60
  4. Step 4: Simplify right side
    367,042.80x = 171,256,077,569.52
  5. Step 5: Solve for x
    x = 171,256,077,569.52/367,042.80
  6. Step 6: Final answer
    x = 466,583.40

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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.