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Finding the Fourth Proportional to 528,832.20, 793,151.10 and 328,794.60

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Solution

The fourth proportional to 528,832.20, 793,151.10 and 328,794.60 is: 493,131.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,832.20 : 793,151.10 = 328,794.60 : x
  2. Step 2: Convert to fraction form
    528,832.20/793,151.10 = 328,794.60/x
  3. Step 3: Cross multiply
    528,832.20x = 793,151.10 × 328,794.60
  4. Step 4: Simplify right side
    528,832.20x = 260,783,798,664.06
  5. Step 5: Solve for x
    x = 260,783,798,664.06/528,832.20
  6. Step 6: Final answer
    x = 493,131.47

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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.