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Finding the Fourth Proportional to 374,429.80, 561,644.70 and 367,431.40

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Solution

The fourth proportional to 374,429.80, 561,644.70 and 367,431.40 is: 551,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,429.80 : 561,644.70 = 367,431.40 : x
  2. Step 2: Convert to fraction form
    374,429.80/561,644.70 = 367,431.40/x
  3. Step 3: Cross multiply
    374,429.80x = 561,644.70 × 367,431.40
  4. Step 4: Simplify right side
    374,429.80x = 206,365,898,423.58
  5. Step 5: Solve for x
    x = 206,365,898,423.58/374,429.80
  6. Step 6: Final answer
    x = 551,147.10

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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.