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Finding the Fourth Proportional to 483,092.60, 724,638.90 and 455,536.40

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Solution

The fourth proportional to 483,092.60, 724,638.90 and 455,536.40 is: 683,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,092.60 : 724,638.90 = 455,536.40 : x
  2. Step 2: Convert to fraction form
    483,092.60/724,638.90 = 455,536.40/x
  3. Step 3: Cross multiply
    483,092.60x = 724,638.90 × 455,536.40
  4. Step 4: Simplify right side
    483,092.60x = 330,099,395,805.96
  5. Step 5: Solve for x
    x = 330,099,395,805.96/483,092.60
  6. Step 6: Final answer
    x = 683,304.60

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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.