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Finding the Fourth Proportional to 415,379.47, 573,222.95 and 224,392.27

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Solution

The fourth proportional to 415,379.47, 573,222.95 and 224,392.27 is: 309,660.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,379.47 : 573,222.95 = 224,392.27 : x
  2. Step 2: Convert to fraction form
    415,379.47/573,222.95 = 224,392.27/x
  3. Step 3: Cross multiply
    415,379.47x = 573,222.95 × 224,392.27
  4. Step 4: Simplify right side
    415,379.47x = 128,626,797,844.64
  5. Step 5: Solve for x
    x = 128,626,797,844.64/415,379.47
  6. Step 6: Final answer
    x = 309,660.94

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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.