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Finding the Fourth Proportional to 350,908.47, 525,337.25 and 261,348.39

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Solution

The fourth proportional to 350,908.47, 525,337.25 and 261,348.39 is: 391,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,908.47 : 525,337.25 = 261,348.39 : x
  2. Step 2: Convert to fraction form
    350,908.47/525,337.25 = 261,348.39/x
  3. Step 3: Cross multiply
    350,908.47x = 525,337.25 × 261,348.39
  4. Step 4: Simplify right side
    350,908.47x = 137,296,043,187.79
  5. Step 5: Solve for x
    x = 137,296,043,187.79/350,908.47
  6. Step 6: Final answer
    x = 391,258.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.