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Finding the Fourth Proportional to 415,305.27, 573,121.68 and 224,318.67

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Solution

The fourth proportional to 415,305.27, 573,121.68 and 224,318.67 is: 309,559.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,305.27 : 573,121.68 = 224,318.67 : x
  2. Step 2: Convert to fraction form
    415,305.27/573,121.68 = 224,318.67/x
  3. Step 3: Cross multiply
    415,305.27x = 573,121.68 × 224,318.67
  4. Step 4: Simplify right side
    415,305.27x = 128,561,893,005.77
  5. Step 5: Solve for x
    x = 128,561,893,005.77/415,305.27
  6. Step 6: Final answer
    x = 309,559.98

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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.