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Finding the Fourth Proportional to 648,266.80, 971,233.80 and 554,954.80

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Solution

The fourth proportional to 648,266.80, 971,233.80 and 554,954.80 is: 831,433.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,266.80 : 971,233.80 = 554,954.80 : x
  2. Step 2: Convert to fraction form
    648,266.80/971,233.80 = 554,954.80/x
  3. Step 3: Cross multiply
    648,266.80x = 971,233.80 × 554,954.80
  4. Step 4: Simplify right side
    648,266.80x = 538,990,859,232.24
  5. Step 5: Solve for x
    x = 538,990,859,232.24/648,266.80
  6. Step 6: Final answer
    x = 831,433.69

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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.