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Finding the Fourth Proportional to 384,654.17, 530,843.08 and 231,740.51

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Solution

The fourth proportional to 384,654.17, 530,843.08 and 231,740.51 is: 319,814.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,654.17 : 530,843.08 = 231,740.51 : x
  2. Step 2: Convert to fraction form
    384,654.17/530,843.08 = 231,740.51/x
  3. Step 3: Cross multiply
    384,654.17x = 530,843.08 × 231,740.51
  4. Step 4: Simplify right side
    384,654.17x = 123,017,842,855.60
  5. Step 5: Solve for x
    x = 123,017,842,855.60/384,654.17
  6. Step 6: Final answer
    x = 319,814.14

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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.