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Finding the Fourth Proportional to 425,712.44, 587,441.64 and 262,343.54

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Solution

The fourth proportional to 425,712.44, 587,441.64 and 262,343.54 is: 362,008.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,712.44 : 587,441.64 = 262,343.54 : x
  2. Step 2: Convert to fraction form
    425,712.44/587,441.64 = 262,343.54/x
  3. Step 3: Cross multiply
    425,712.44x = 587,441.64 × 262,343.54
  4. Step 4: Simplify right side
    425,712.44x = 154,111,519,381.01
  5. Step 5: Solve for x
    x = 154,111,519,381.01/425,712.44
  6. Step 6: Final answer
    x = 362,008.49

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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.