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Finding the Fourth Proportional to 372,169.55, 513,709.61 and 295,824.11

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Solution

The fourth proportional to 372,169.55, 513,709.61 and 295,824.11 is: 408,329.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,169.55 : 513,709.61 = 295,824.11 : x
  2. Step 2: Convert to fraction form
    372,169.55/513,709.61 = 295,824.11/x
  3. Step 3: Cross multiply
    372,169.55x = 513,709.61 × 295,824.11
  4. Step 4: Simplify right side
    372,169.55x = 151,967,688,176.70
  5. Step 5: Solve for x
    x = 151,967,688,176.70/372,169.55
  6. Step 6: Final answer
    x = 408,329.18

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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.