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Finding the Fourth Proportional to 612,249.78, 844,856.10 and 340,296.33

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Solution

The fourth proportional to 612,249.78, 844,856.10 and 340,296.33 is: 469,581.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,249.78 : 844,856.10 = 340,296.33 : x
  2. Step 2: Convert to fraction form
    612,249.78/844,856.10 = 340,296.33/x
  3. Step 3: Cross multiply
    612,249.78x = 844,856.10 × 340,296.33
  4. Step 4: Simplify right side
    612,249.78x = 287,501,430,208.11
  5. Step 5: Solve for x
    x = 287,501,430,208.11/612,249.78
  6. Step 6: Final answer
    x = 469,581.92

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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.