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Finding the Fourth Proportional to 366,018.22, 549,121.98 and 214,343.40

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Solution

The fourth proportional to 366,018.22, 549,121.98 and 214,343.40 is: 321,570.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,018.22 : 549,121.98 = 214,343.40 : x
  2. Step 2: Convert to fraction form
    366,018.22/549,121.98 = 214,343.40/x
  3. Step 3: Cross multiply
    366,018.22x = 549,121.98 × 214,343.40
  4. Step 4: Simplify right side
    366,018.22x = 117,700,672,207.93
  5. Step 5: Solve for x
    x = 117,700,672,207.93/366,018.22
  6. Step 6: Final answer
    x = 321,570.53

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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.