Home / 609,207-840,588.96-394,317.24

Finding the Fourth Proportional to 609,207, 840,588.96 and 394,317.24

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Solution

The fourth proportional to 609,207, 840,588.96 and 394,317.24 is: 544,082.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,207 : 840,588.96 = 394,317.24 : x
  2. Step 2: Convert to fraction form
    609,207/840,588.96 = 394,317.24/x
  3. Step 3: Cross multiply
    609,207x = 840,588.96 × 394,317.24
  4. Step 4: Simplify right side
    609,207x = 331,458,718,681.67
  5. Step 5: Solve for x
    x = 331,458,718,681.67/609,207
  6. Step 6: Final answer
    x = 544,082.26

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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.