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Finding the Fourth Proportional to 415,423.70, 573,287.22 and 231,673.89

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Solution

The fourth proportional to 415,423.70, 573,287.22 and 231,673.89 is: 319,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,423.70 : 573,287.22 = 231,673.89 : x
  2. Step 2: Convert to fraction form
    415,423.70/573,287.22 = 231,673.89/x
  3. Step 3: Cross multiply
    415,423.70x = 573,287.22 × 231,673.89
  4. Step 4: Simplify right side
    415,423.70x = 132,815,679,269.77
  5. Step 5: Solve for x
    x = 132,815,679,269.77/415,423.70
  6. Step 6: Final answer
    x = 319,711.36

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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.