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Finding the Fourth Proportional to 566,638.80, 847,989.90 and 519,399.60

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Solution

The fourth proportional to 566,638.80, 847,989.90 and 519,399.60 is: 777,295.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,638.80 : 847,989.90 = 519,399.60 : x
  2. Step 2: Convert to fraction form
    566,638.80/847,989.90 = 519,399.60/x
  3. Step 3: Cross multiply
    566,638.80x = 847,989.90 × 519,399.60
  4. Step 4: Simplify right side
    566,638.80x = 440,445,614,864.04
  5. Step 5: Solve for x
    x = 440,445,614,864.04/566,638.80
  6. Step 6: Final answer
    x = 777,295.19

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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.