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Finding the Fourth Proportional to 519,130.08, 778,360.32 and 203,618.88

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Solution

The fourth proportional to 519,130.08, 778,360.32 and 203,618.88 is: 305,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,130.08 : 778,360.32 = 203,618.88 : x
  2. Step 2: Convert to fraction form
    519,130.08/778,360.32 = 203,618.88/x
  3. Step 3: Cross multiply
    519,130.08x = 778,360.32 × 203,618.88
  4. Step 4: Simplify right side
    519,130.08x = 158,488,856,594.84
  5. Step 5: Solve for x
    x = 158,488,856,594.84/519,130.08
  6. Step 6: Final answer
    x = 305,297.00

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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.