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Finding the Fourth Proportional to 555,052.80, 831,704.40 and 465,823.20

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Solution

The fourth proportional to 555,052.80, 831,704.40 and 465,823.20 is: 698,000.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,052.80 : 831,704.40 = 465,823.20 : x
  2. Step 2: Convert to fraction form
    555,052.80/831,704.40 = 465,823.20/x
  3. Step 3: Cross multiply
    555,052.80x = 831,704.40 × 465,823.20
  4. Step 4: Simplify right side
    555,052.80x = 387,427,205,062.08
  5. Step 5: Solve for x
    x = 387,427,205,062.08/555,052.80
  6. Step 6: Final answer
    x = 698,000.63

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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.