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Finding the Fourth Proportional to 366,418.40, 549,627.60 and 307,369.40

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Solution

The fourth proportional to 366,418.40, 549,627.60 and 307,369.40 is: 461,054.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,418.40 : 549,627.60 = 307,369.40 : x
  2. Step 2: Convert to fraction form
    366,418.40/549,627.60 = 307,369.40/x
  3. Step 3: Cross multiply
    366,418.40x = 549,627.60 × 307,369.40
  4. Step 4: Simplify right side
    366,418.40x = 168,938,705,635.44
  5. Step 5: Solve for x
    x = 168,938,705,635.44/366,418.40
  6. Step 6: Final answer
    x = 461,054.10

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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.