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Finding the Fourth Proportional to 605,887.68, 836,128.32 and 351,389.76

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Solution

The fourth proportional to 605,887.68, 836,128.32 and 351,389.76 is: 484,919.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,887.68 : 836,128.32 = 351,389.76 : x
  2. Step 2: Convert to fraction form
    605,887.68/836,128.32 = 351,389.76/x
  3. Step 3: Cross multiply
    605,887.68x = 836,128.32 × 351,389.76
  4. Step 4: Simplify right side
    605,887.68x = 293,806,929,694.00
  5. Step 5: Solve for x
    x = 293,806,929,694.00/605,887.68
  6. Step 6: Final answer
    x = 484,919.80

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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.