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Finding the Fourth Proportional to 436,128.72, 601,769.43 and 254,805.63

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Solution

The fourth proportional to 436,128.72, 601,769.43 and 254,805.63 is: 351,580.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,128.72 : 601,769.43 = 254,805.63 : x
  2. Step 2: Convert to fraction form
    436,128.72/601,769.43 = 254,805.63/x
  3. Step 3: Cross multiply
    436,128.72x = 601,769.43 × 254,805.63
  4. Step 4: Simplify right side
    436,128.72x = 153,334,238,725.89
  5. Step 5: Solve for x
    x = 153,334,238,725.89/436,128.72
  6. Step 6: Final answer
    x = 351,580.24

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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.