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Finding the Fourth Proportional to 519,066.10, 778,793.55 and 203,749.30

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Solution

The fourth proportional to 519,066.10, 778,793.55 and 203,749.30 is: 305,700.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,066.10 : 778,793.55 = 203,749.30 : x
  2. Step 2: Convert to fraction form
    519,066.10/778,793.55 = 203,749.30/x
  3. Step 3: Cross multiply
    519,066.10x = 778,793.55 × 203,749.30
  4. Step 4: Simplify right side
    519,066.10x = 158,678,640,657.02
  5. Step 5: Solve for x
    x = 158,678,640,657.02/519,066.10
  6. Step 6: Final answer
    x = 305,700.26

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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.