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Finding the Fourth Proportional to 427,908.81, 590,532.61 and 236,922.20

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Solution

The fourth proportional to 427,908.81, 590,532.61 and 236,922.20 is: 326,962.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,908.81 : 590,532.61 = 236,922.20 : x
  2. Step 2: Convert to fraction form
    427,908.81/590,532.61 = 236,922.20/x
  3. Step 3: Cross multiply
    427,908.81x = 590,532.61 × 236,922.20
  4. Step 4: Simplify right side
    427,908.81x = 139,910,285,132.94
  5. Step 5: Solve for x
    x = 139,910,285,132.94/427,908.81
  6. Step 6: Final answer
    x = 326,962.85

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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.