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Finding the Fourth Proportional to 584,431.80, 876,042.90 and 317,628.60

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Solution

The fourth proportional to 584,431.80, 876,042.90 and 317,628.60 is: 476,114.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,431.80 : 876,042.90 = 317,628.60 : x
  2. Step 2: Convert to fraction form
    584,431.80/876,042.90 = 317,628.60/x
  3. Step 3: Cross multiply
    584,431.80x = 876,042.90 × 317,628.60
  4. Step 4: Simplify right side
    584,431.80x = 278,256,279,866.94
  5. Step 5: Solve for x
    x = 278,256,279,866.94/584,431.80
  6. Step 6: Final answer
    x = 476,114.20

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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.