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Finding the Fourth Proportional to 374,448.39, 561,812.88 and 194,421.42

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Solution

The fourth proportional to 374,448.39, 561,812.88 and 194,421.42 is: 291,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,448.39 : 561,812.88 = 194,421.42 : x
  2. Step 2: Convert to fraction form
    374,448.39/561,812.88 = 194,421.42/x
  3. Step 3: Cross multiply
    374,448.39x = 561,812.88 × 194,421.42
  4. Step 4: Simplify right side
    374,448.39x = 109,228,457,903.89
  5. Step 5: Solve for x
    x = 109,228,457,903.89/374,448.39
  6. Step 6: Final answer
    x = 291,704.97

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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.