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Finding the Fourth Proportional to 654,431.40, 903,092.22 and 367,967.88

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Solution

The fourth proportional to 654,431.40, 903,092.22 and 367,967.88 is: 507,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,431.40 : 903,092.22 = 367,967.88 : x
  2. Step 2: Convert to fraction form
    654,431.40/903,092.22 = 367,967.88/x
  3. Step 3: Cross multiply
    654,431.40x = 903,092.22 × 367,967.88
  4. Step 4: Simplify right side
    654,431.40x = 332,308,929,637.89
  5. Step 5: Solve for x
    x = 332,308,929,637.89/654,431.40
  6. Step 6: Final answer
    x = 507,782.68

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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.