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Finding the Fourth Proportional to 548,945.76, 823,485.06 and 193,887.12

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Solution

The fourth proportional to 548,945.76, 823,485.06 and 193,887.12 is: 290,854.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,945.76 : 823,485.06 = 193,887.12 : x
  2. Step 2: Convert to fraction form
    548,945.76/823,485.06 = 193,887.12/x
  3. Step 3: Cross multiply
    548,945.76x = 823,485.06 × 193,887.12
  4. Step 4: Simplify right side
    548,945.76x = 159,663,146,646.43
  5. Step 5: Solve for x
    x = 159,663,146,646.43/548,945.76
  6. Step 6: Final answer
    x = 290,854.14

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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.