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Finding the Fourth Proportional to 604,402.72, 905,860.48 and 267,079.84

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Solution

The fourth proportional to 604,402.72, 905,860.48 and 267,079.84 is: 400,291.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,402.72 : 905,860.48 = 267,079.84 : x
  2. Step 2: Convert to fraction form
    604,402.72/905,860.48 = 267,079.84/x
  3. Step 3: Cross multiply
    604,402.72x = 905,860.48 × 267,079.84
  4. Step 4: Simplify right side
    604,402.72x = 241,937,072,060.72
  5. Step 5: Solve for x
    x = 241,937,072,060.72/604,402.72
  6. Step 6: Final answer
    x = 400,291.17

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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.