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Finding the Fourth Proportional to 624,100, 861,260.16 and 337,621.44

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Solution

The fourth proportional to 624,100, 861,260.16 and 337,621.44 is: 465,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,100 : 861,260.16 = 337,621.44 : x
  2. Step 2: Convert to fraction form
    624,100/861,260.16 = 337,621.44/x
  3. Step 3: Cross multiply
    624,100x = 861,260.16 × 337,621.44
  4. Step 4: Simplify right side
    624,100x = 290,779,895,433.83
  5. Step 5: Solve for x
    x = 290,779,895,433.83/624,100
  6. Step 6: Final answer
    x = 465,918.76

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1.5x scale

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.