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Finding the Fourth Proportional to 458,401.40, 632,562.26 and 254,436.28

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Solution

The fourth proportional to 458,401.40, 632,562.26 and 254,436.28 is: 351,104.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,401.40 : 632,562.26 = 254,436.28 : x
  2. Step 2: Convert to fraction form
    458,401.40/632,562.26 = 254,436.28/x
  3. Step 3: Cross multiply
    458,401.40x = 632,562.26 × 254,436.28
  4. Step 4: Simplify right side
    458,401.40x = 160,946,788,302.79
  5. Step 5: Solve for x
    x = 160,946,788,302.79/458,401.40
  6. Step 6: Final answer
    x = 351,104.49

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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.