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Finding the Fourth Proportional to 610,553.64, 842,606.96 and 338,647.44

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Solution

The fourth proportional to 610,553.64, 842,606.96 and 338,647.44 is: 467,357.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,553.64 : 842,606.96 = 338,647.44 : x
  2. Step 2: Convert to fraction form
    610,553.64/842,606.96 = 338,647.44/x
  3. Step 3: Cross multiply
    610,553.64x = 842,606.96 × 338,647.44
  4. Step 4: Simplify right side
    610,553.64x = 285,346,689,930.18
  5. Step 5: Solve for x
    x = 285,346,689,930.18/610,553.64
  6. Step 6: Final answer
    x = 467,357.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.