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Finding the Fourth Proportional to 415,866.72, 573,896.09 and 224,880.12

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Solution

The fourth proportional to 415,866.72, 573,896.09 and 224,880.12 is: 310,334.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,866.72 : 573,896.09 = 224,880.12 : x
  2. Step 2: Convert to fraction form
    415,866.72/573,896.09 = 224,880.12/x
  3. Step 3: Cross multiply
    415,866.72x = 573,896.09 × 224,880.12
  4. Step 4: Simplify right side
    415,866.72x = 129,057,820,462.33
  5. Step 5: Solve for x
    x = 129,057,820,462.33/415,866.72
  6. Step 6: Final answer
    x = 310,334.57

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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.