Home / 289,326.60-399,004.32-198,522.36

Finding the Fourth Proportional to 289,326.60, 399,004.32 and 198,522.36

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Solution

The fourth proportional to 289,326.60, 399,004.32 and 198,522.36 is: 273,778.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,326.60 : 399,004.32 = 198,522.36 : x
  2. Step 2: Convert to fraction form
    289,326.60/399,004.32 = 198,522.36/x
  3. Step 3: Cross multiply
    289,326.60x = 399,004.32 × 198,522.36
  4. Step 4: Simplify right side
    289,326.60x = 79,211,279,256.60
  5. Step 5: Solve for x
    x = 79,211,279,256.60/289,326.60
  6. Step 6: Final answer
    x = 273,778.07

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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.