Home / 336,429.08-504,632.64-136,690.40

Finding the Fourth Proportional to 336,429.08, 504,632.64 and 136,690.40

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Solution

The fourth proportional to 336,429.08, 504,632.64 and 136,690.40 is: 205,031.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,429.08 : 504,632.64 = 136,690.40 : x
  2. Step 2: Convert to fraction form
    336,429.08/504,632.64 = 136,690.40/x
  3. Step 3: Cross multiply
    336,429.08x = 504,632.64 × 136,690.40
  4. Step 4: Simplify right side
    336,429.08x = 68,978,437,414.66
  5. Step 5: Solve for x
    x = 68,978,437,414.66/336,429.08
  6. Step 6: Final answer
    x = 205,031.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.