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Finding the Fourth Proportional to 293,886.30, 440,843.85 and 153,918.30

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Solution

The fourth proportional to 293,886.30, 440,843.85 and 153,918.30 is: 230,884.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,886.30 : 440,843.85 = 153,918.30 : x
  2. Step 2: Convert to fraction form
    293,886.30/440,843.85 = 153,918.30/x
  3. Step 3: Cross multiply
    293,886.30x = 440,843.85 × 153,918.30
  4. Step 4: Simplify right side
    293,886.30x = 67,853,935,957.46
  5. Step 5: Solve for x
    x = 67,853,935,957.46/293,886.30
  6. Step 6: Final answer
    x = 230,884.99

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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.