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Finding the Fourth Proportional to 528,099.20, 792,051.60 and 328,061.60

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Solution

The fourth proportional to 528,099.20, 792,051.60 and 328,061.60 is: 492,032.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,099.20 : 792,051.60 = 328,061.60 : x
  2. Step 2: Convert to fraction form
    528,099.20/792,051.60 = 328,061.60/x
  3. Step 3: Cross multiply
    528,099.20x = 792,051.60 × 328,061.60
  4. Step 4: Simplify right side
    528,099.20x = 259,841,715,178.56
  5. Step 5: Solve for x
    x = 259,841,715,178.56/528,099.20
  6. Step 6: Final answer
    x = 492,032.02

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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.