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Finding the Fourth Proportional to 634,312.33, 874,504.21 and 503,922.63

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Solution

The fourth proportional to 634,312.33, 874,504.21 and 503,922.63 is: 694,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,312.33 : 874,504.21 = 503,922.63 : x
  2. Step 2: Convert to fraction form
    634,312.33/874,504.21 = 503,922.63/x
  3. Step 3: Cross multiply
    634,312.33x = 874,504.21 × 503,922.63
  4. Step 4: Simplify right side
    634,312.33x = 440,682,461,449.27
  5. Step 5: Solve for x
    x = 440,682,461,449.27/634,312.33
  6. Step 6: Final answer
    x = 694,740.49

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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.