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Finding the Fourth Proportional to 581,553.60, 870,930.68 and 393,996.48

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Solution

The fourth proportional to 581,553.60, 870,930.68 and 393,996.48 is: 590,046.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,553.60 : 870,930.68 = 393,996.48 : x
  2. Step 2: Convert to fraction form
    581,553.60/870,930.68 = 393,996.48/x
  3. Step 3: Cross multiply
    581,553.60x = 870,930.68 × 393,996.48
  4. Step 4: Simplify right side
    581,553.60x = 343,143,622,244.01
  5. Step 5: Solve for x
    x = 343,143,622,244.01/581,553.60
  6. Step 6: Final answer
    x = 590,046.42

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1.5x scale

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.