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Finding the Fourth Proportional to 415,638.36, 573,613.43 and 231,934.69

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Solution

The fourth proportional to 415,638.36, 573,613.43 and 231,934.69 is: 320,088.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,638.36 : 573,613.43 = 231,934.69 : x
  2. Step 2: Convert to fraction form
    415,638.36/573,613.43 = 231,934.69/x
  3. Step 3: Cross multiply
    415,638.36x = 573,613.43 × 231,934.69
  4. Step 4: Simplify right side
    415,638.36x = 133,040,850,473.18
  5. Step 5: Solve for x
    x = 133,040,850,473.18/415,638.36
  6. Step 6: Final answer
    x = 320,088.00

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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.