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Finding the Fourth Proportional to 624,101.56, 861,259.38 and 337,621

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Solution

The fourth proportional to 624,101.56, 861,259.38 and 337,621 is: 465,916.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,101.56 : 861,259.38 = 337,621 : x
  2. Step 2: Convert to fraction form
    624,101.56/861,259.38 = 337,621/x
  3. Step 3: Cross multiply
    624,101.56x = 861,259.38 × 337,621
  4. Step 4: Simplify right side
    624,101.56x = 290,779,253,134.98
  5. Step 5: Solve for x
    x = 290,779,253,134.98/624,101.56
  6. Step 6: Final answer
    x = 465,916.56

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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.