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Finding the Fourth Proportional to 304,796.63, 420,614.91 and 168,830.13

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Solution

The fourth proportional to 304,796.63, 420,614.91 and 168,830.13 is: 232,983.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,796.63 : 420,614.91 = 168,830.13 : x
  2. Step 2: Convert to fraction form
    304,796.63/420,614.91 = 168,830.13/x
  3. Step 3: Cross multiply
    304,796.63x = 420,614.91 × 168,830.13
  4. Step 4: Simplify right side
    304,796.63x = 71,012,471,512.54
  5. Step 5: Solve for x
    x = 71,012,471,512.54/304,796.63
  6. Step 6: Final answer
    x = 232,983.12

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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.