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Finding the Fourth Proportional to 415,186.62, 572,999.85 and 254,148.09

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Solution

The fourth proportional to 415,186.62, 572,999.85 and 254,148.09 is: 350,750.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,186.62 : 572,999.85 = 254,148.09 : x
  2. Step 2: Convert to fraction form
    415,186.62/572,999.85 = 254,148.09/x
  3. Step 3: Cross multiply
    415,186.62x = 572,999.85 × 254,148.09
  4. Step 4: Simplify right side
    415,186.62x = 145,626,817,447.79
  5. Step 5: Solve for x
    x = 145,626,817,447.79/415,186.62
  6. Step 6: Final answer
    x = 350,750.27

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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.