Home / 353,176.20-528,986.70-306,520.20

Finding the Fourth Proportional to 353,176.20, 528,986.70 and 306,520.20

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Solution

The fourth proportional to 353,176.20, 528,986.70 and 306,520.20 is: 459,105.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,176.20 : 528,986.70 = 306,520.20 : x
  2. Step 2: Convert to fraction form
    353,176.20/528,986.70 = 306,520.20/x
  3. Step 3: Cross multiply
    353,176.20x = 528,986.70 × 306,520.20
  4. Step 4: Simplify right side
    353,176.20x = 162,145,109,081.34
  5. Step 5: Solve for x
    x = 162,145,109,081.34/353,176.20
  6. Step 6: Final answer
    x = 459,105.42

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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.