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Finding the Fourth Proportional to 304,796.76, 420,615.08 and 168,830.26

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Solution

The fourth proportional to 304,796.76, 420,615.08 and 168,830.26 is: 232,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,796.76 : 420,615.08 = 168,830.26 : x
  2. Step 2: Convert to fraction form
    304,796.76/420,615.08 = 168,830.26/x
  3. Step 3: Cross multiply
    304,796.76x = 420,615.08 × 168,830.26
  4. Step 4: Simplify right side
    304,796.76x = 71,012,553,316.32
  5. Step 5: Solve for x
    x = 71,012,553,316.32/304,796.76
  6. Step 6: Final answer
    x = 232,983.29

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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.