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Finding the Fourth Proportional to 366,939.65, 549,878.26 and 252,970.47

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Solution

The fourth proportional to 366,939.65, 549,878.26 and 252,970.47 is: 379,089.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,939.65 : 549,878.26 = 252,970.47 : x
  2. Step 2: Convert to fraction form
    366,939.65/549,878.26 = 252,970.47/x
  3. Step 3: Cross multiply
    366,939.65x = 549,878.26 × 252,970.47
  4. Step 4: Simplify right side
    366,939.65x = 139,102,961,242.56
  5. Step 5: Solve for x
    x = 139,102,961,242.56/366,939.65
  6. Step 6: Final answer
    x = 379,089.49

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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.