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Finding the Fourth Proportional to 474,859.25, 655,305.63 and 259,999.25

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Solution

The fourth proportional to 474,859.25, 655,305.63 and 259,999.25 is: 358,798.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,859.25 : 655,305.63 = 259,999.25 : x
  2. Step 2: Convert to fraction form
    474,859.25/655,305.63 = 259,999.25/x
  3. Step 3: Cross multiply
    474,859.25x = 655,305.63 × 259,999.25
  4. Step 4: Simplify right side
    474,859.25x = 170,378,969,044.25
  5. Step 5: Solve for x
    x = 170,378,969,044.25/474,859.25
  6. Step 6: Final answer
    x = 358,798.89

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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.