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Finding the Fourth Proportional to 440,571.35, 607,942.78 and 259,272.47

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Solution

The fourth proportional to 440,571.35, 607,942.78 and 259,272.47 is: 357,769.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,571.35 : 607,942.78 = 259,272.47 : x
  2. Step 2: Convert to fraction form
    440,571.35/607,942.78 = 259,272.47/x
  3. Step 3: Cross multiply
    440,571.35x = 607,942.78 × 259,272.47
  4. Step 4: Simplify right side
    440,571.35x = 157,622,827,060.94
  5. Step 5: Solve for x
    x = 157,622,827,060.94/440,571.35
  6. Step 6: Final answer
    x = 357,769.12

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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.