Home / 351,979.65-528,067.90-115,488.40

Finding the Fourth Proportional to 351,979.65, 528,067.90 and 115,488.40

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Solution

The fourth proportional to 351,979.65, 528,067.90 and 115,488.40 is: 173,264.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,979.65 : 528,067.90 = 115,488.40 : x
  2. Step 2: Convert to fraction form
    351,979.65/528,067.90 = 115,488.40/x
  3. Step 3: Cross multiply
    351,979.65x = 528,067.90 × 115,488.40
  4. Step 4: Simplify right side
    351,979.65x = 60,985,716,862.36
  5. Step 5: Solve for x
    x = 60,985,716,862.36/351,979.65
  6. Step 6: Final answer
    x = 173,264.89

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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.