Home / 679,015.98-936,626.85-403,186.86

Finding the Fourth Proportional to 679,015.98, 936,626.85 and 403,186.86

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Solution

The fourth proportional to 679,015.98, 936,626.85 and 403,186.86 is: 556,151.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,015.98 : 936,626.85 = 403,186.86 : x
  2. Step 2: Convert to fraction form
    679,015.98/936,626.85 = 403,186.86/x
  3. Step 3: Cross multiply
    679,015.98x = 936,626.85 × 403,186.86
  4. Step 4: Simplify right side
    679,015.98x = 377,635,638,643.19
  5. Step 5: Solve for x
    x = 377,635,638,643.19/679,015.98
  6. Step 6: Final answer
    x = 556,151.33

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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.