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Finding the Fourth Proportional to 427,846.72, 590,434.50 and 236,860.06

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Solution

The fourth proportional to 427,846.72, 590,434.50 and 236,860.06 is: 326,870.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,846.72 : 590,434.50 = 236,860.06 : x
  2. Step 2: Convert to fraction form
    427,846.72/590,434.50 = 236,860.06/x
  3. Step 3: Cross multiply
    427,846.72x = 590,434.50 × 236,860.06
  4. Step 4: Simplify right side
    427,846.72x = 139,850,351,096.07
  5. Step 5: Solve for x
    x = 139,850,351,096.07/427,846.72
  6. Step 6: Final answer
    x = 326,870.22

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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.