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Finding the Fourth Proportional to 368,526.21, 551,903.49 and 210,274.89

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Solution

The fourth proportional to 368,526.21, 551,903.49 and 210,274.89 is: 314,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,526.21 : 551,903.49 = 210,274.89 : x
  2. Step 2: Convert to fraction form
    368,526.21/551,903.49 = 210,274.89/x
  3. Step 3: Cross multiply
    368,526.21x = 551,903.49 × 210,274.89
  4. Step 4: Simplify right side
    368,526.21x = 116,051,445,650.37
  5. Step 5: Solve for x
    x = 116,051,445,650.37/368,526.21
  6. Step 6: Final answer
    x = 314,906.90

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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.