Home / 351,970.90-528,054.76-115,479.65

Finding the Fourth Proportional to 351,970.90, 528,054.76 and 115,479.65

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Solution

The fourth proportional to 351,970.90, 528,054.76 and 115,479.65 is: 173,251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,970.90 : 528,054.76 = 115,479.65 : x
  2. Step 2: Convert to fraction form
    351,970.90/528,054.76 = 115,479.65/x
  3. Step 3: Cross multiply
    351,970.90x = 528,054.76 × 115,479.65
  4. Step 4: Simplify right side
    351,970.90x = 60,979,580,330.12
  5. Step 5: Solve for x
    x = 60,979,580,330.12/351,970.90
  6. Step 6: Final answer
    x = 173,251.77

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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.