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Finding the Fourth Proportional to 528,092.70, 792,041.85 and 328,055.10

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Solution

The fourth proportional to 528,092.70, 792,041.85 and 328,055.10 is: 492,022.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,092.70 : 792,041.85 = 328,055.10 : x
  2. Step 2: Convert to fraction form
    528,092.70/792,041.85 = 328,055.10/x
  3. Step 3: Cross multiply
    528,092.70x = 792,041.85 × 328,055.10
  4. Step 4: Simplify right side
    528,092.70x = 259,833,368,305.94
  5. Step 5: Solve for x
    x = 259,833,368,305.94/528,092.70
  6. Step 6: Final answer
    x = 492,022.27

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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.