Home / 679,157.43-936,820.38-403,327.92

Finding the Fourth Proportional to 679,157.43, 936,820.38 and 403,327.92

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Solution

The fourth proportional to 679,157.43, 936,820.38 and 403,327.92 is: 556,344.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,157.43 : 936,820.38 = 403,327.92 : x
  2. Step 2: Convert to fraction form
    679,157.43/936,820.38 = 403,327.92/x
  3. Step 3: Cross multiply
    679,157.43x = 936,820.38 × 403,327.92
  4. Step 4: Simplify right side
    679,157.43x = 377,845,815,279.01
  5. Step 5: Solve for x
    x = 377,845,815,279.01/679,157.43
  6. Step 6: Final answer
    x = 556,344.96

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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.